638463840

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 384

約数和(自身を含む): 2470487040

約数和(自身を除く): 1832023200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 73, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 137, 140, 146, 152, 160, 168, 190, 210, 219, 224, 228, 240, 266, 274, 280, 285, 292, 304, 336, 365, 380, 399, 411, 420, 438, 456, 480, 511, 532, 548, 560, 570, 584, 608, 665, 672, 685, 730, 760, 798, 822, 840, 876, 912, 959, 1022, 1064, 1095, 1096, 1120, 1140, 1168, 1330, 1370, 1387, 1460, 1520, 1533, 1596, 1644, 1680, 1752, 1824, 1918, 1995, 2044, 2055, 2128, 2190, 2192, 2280, 2336, 2555, 2603, 2660, 2740, 2774, 2877, 2920, 3040, 3066, 3192, 3288, 3360, 3504, 3836, 3990, 4088, 4110, 4161, 4256, 4380, 4384, 4560, 4795, 5110, 5206, 5320, 5480, 5548, 5754, 5840, 6132, 6384, 6576, 6935, 7008, 7665, 7672, 7809, 7980, 8176, 8220, 8322, 8760, 9120, 9590, 9709, 10001, 10220, 10412, 10640, 10960, 11096, 11508, 11680, 12264, 12768, 13015, 13152, 13870, 14385, 15330, 15344, 15618, 15960, 16352, 16440, 16644, 17520, 18221, 19180, 19418, 20002, 20440, 20805, 20824, 21280, 21920, 22192, 23016, 24528, 26030, 27740, 28770, 29127, 30003, 30660, 30688, 31236, 31920, 32880, 33288, 35040, 36442, 38360, 38836, 39045, 40004, 40880, 41610, 41648, 44384, 46032, 48545, 49056, 50005, 52060, 54663, 55480, 57540, 58254, 60006, 61320, 62472, 63840, 65760, 66576, 70007, 72884, 76720, 77672, 78090, 80008, 81760, 83220, 83296, 91105, 92064, 97090, 100010, 104120, 109326, 110960, 115080, 116508, 120012, 122640, 124944, 133152, 140014, 145635, 145768, 150015, 153440, 155344, 156180, 160016, 166440, 182210, 190019, 194180, 200020, 208240, 210021, 218652, 221920, 230160, 233016, 240024, 245280, 249888, 273315, 280028, 291270, 291536, 300030, 310688, 312360, 320032, 332880, 350035, 364420, 380038, 388360, 400040, 416480, 420042, 437304, 460320, 466032, 480048, 546630, 560056, 570057, 582540, 583072, 600060, 624720, 665760, 700070, 728840, 760076, 776720, 800080, 840084, 874608, 932064, 950095, 960096, 1050105, 1093260, 1120112, 1140114, 1165080, 1200120, 1249440, 1330133, 1400140, 1457680, 1520152, 1553440, 1600160, 1680168, 1749216, 1900190, 2100210, 2186520, 2240224, 2280228, 2330160, 2400240, 2660266, 2800280, 2850285, 2915360, 3040304, 3360336, 3800380, 3990399, 4200420, 4373040, 4560456, 4660320, 4800480, 5320532, 5600560, 5700570, 6080608, 6650665, 6720672, 7600760, 7980798, 8400840, 8746080, 9120912, 10641064, 11201120, 11401140, 13301330, 15201520, 15961596, 16801680, 18241824, 19951995, 21282128, 22802280, 26602660, 30403040, 31923192, 33603360, 39903990, 42564256, 45604560, 53205320, 63846384, 79807980, 91209120, 106410640, 127692768, 159615960, 212821280, 319231920, 638463840]

約数ペア:

[(1, 638463840), (2, 319231920), (3, 212821280), (4, 159615960), (5, 127692768), (6, 106410640), (7, 91209120), (8, 79807980), (10, 63846384), (12, 53205320), (14, 45604560), (15, 42564256), (16, 39903990), (19, 33603360), (20, 31923192), (21, 30403040), (24, 26602660), (28, 22802280), (30, 21282128), (32, 19951995), (35, 18241824), (38, 16801680), (40, 15961596), (42, 15201520), (48, 13301330), (56, 11401140), (57, 11201120), (60, 10641064), (70, 9120912), (73, 8746080), (76, 8400840), (80, 7980798), (84, 7600760), (95, 6720672), (96, 6650665), (105, 6080608), (112, 5700570), (114, 5600560), (120, 5320532), (133, 4800480), (137, 4660320), (140, 4560456), (146, 4373040), (152, 4200420), (160, 3990399), (168, 3800380), (190, 3360336), (210, 3040304), (219, 2915360), (224, 2850285), (228, 2800280), (240, 2660266), (266, 2400240), (274, 2330160), (280, 2280228), (285, 2240224), (292, 2186520), (304, 2100210), (336, 1900190), (365, 1749216), (380, 1680168), (399, 1600160), (411, 1553440), (420, 1520152), (438, 1457680), (456, 1400140), (480, 1330133), (511, 1249440), (532, 1200120), (548, 1165080), (560, 1140114), (570, 1120112), (584, 1093260), (608, 1050105), (665, 960096), (672, 950095), (685, 932064), (730, 874608), (760, 840084), (798, 800080), (822, 776720), (840, 760076), (876, 728840), (912, 700070), (959, 665760), (1022, 624720), (1064, 600060), (1095, 583072), (1096, 582540), (1120, 570057), (1140, 560056), (1168, 546630), (1330, 480048), (1370, 466032), (1387, 460320), (1460, 437304), (1520, 420042), (1533, 416480), (1596, 400040), (1644, 388360), (1680, 380038), (1752, 364420), (1824, 350035), (1918, 332880), (1995, 320032), (2044, 312360), (2055, 310688), (2128, 300030), (2190, 291536), (2192, 291270), (2280, 280028), (2336, 273315), (2555, 249888), (2603, 245280), (2660, 240024), (2740, 233016), (2774, 230160), (2877, 221920), (2920, 218652), (3040, 210021), (3066, 208240), (3192, 200020), (3288, 194180), (3360, 190019), (3504, 182210), (3836, 166440), (3990, 160016), (4088, 156180), (4110, 155344), (4161, 153440), (4256, 150015), (4380, 145768), (4384, 145635), (4560, 140014), (4795, 133152), (5110, 124944), (5206, 122640), (5320, 120012), (5480, 116508), (5548, 115080), (5754, 110960), (5840, 109326), (6132, 104120), (6384, 100010), (6576, 97090), (6935, 92064), (7008, 91105), (7665, 83296), (7672, 83220), (7809, 81760), (7980, 80008), (8176, 78090), (8220, 77672), (8322, 76720), (8760, 72884), (9120, 70007), (9590, 66576), (9709, 65760), (10001, 63840), (10220, 62472), (10412, 61320), (10640, 60006), (10960, 58254), (11096, 57540), (11508, 55480), (11680, 54663), (12264, 52060), (12768, 50005), (13015, 49056), (13152, 48545), (13870, 46032), (14385, 44384), (15330, 41648), (15344, 41610), (15618, 40880), (15960, 40004), (16352, 39045), (16440, 38836), (16644, 38360), (17520, 36442), (18221, 35040), (19180, 33288), (19418, 32880), (20002, 31920), (20440, 31236), (20805, 30688), (20824, 30660), (21280, 30003), (21920, 29127), (22192, 28770), (23016, 27740), (24528, 26030)]