18641280

素因数分解:

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

素因数の和:121

約数の個数: 256

約数和(自身を含む): 72460800

約数和(自身を除く): 53819520

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, 64, 70, 73, 76, 80, 84, 95, 96, 105, 112, 114, 120, 128, 133, 140, 146, 152, 160, 168, 190, 192, 210, 219, 224, 228, 240, 266, 280, 285, 292, 304, 320, 336, 365, 380, 384, 399, 420, 438, 448, 456, 480, 511, 532, 560, 570, 584, 608, 640, 665, 672, 730, 760, 798, 840, 876, 896, 912, 960, 1022, 1064, 1095, 1120, 1140, 1168, 1216, 1330, 1344, 1387, 1460, 1520, 1533, 1596, 1680, 1752, 1824, 1920, 1995, 2044, 2128, 2190, 2240, 2280, 2336, 2432, 2555, 2660, 2688, 2774, 2920, 3040, 3066, 3192, 3360, 3504, 3648, 3990, 4088, 4161, 4256, 4380, 4480, 4560, 4672, 5110, 5320, 5548, 5840, 6080, 6132, 6384, 6720, 6935, 7008, 7296, 7665, 7980, 8176, 8322, 8512, 8760, 9120, 9344, 9709, 10220, 10640, 11096, 11680, 12160, 12264, 12768, 13440, 13870, 14016, 15330, 15960, 16352, 16644, 17024, 17520, 18240, 19418, 20440, 20805, 21280, 22192, 23360, 24528, 25536, 27740, 28032, 29127, 30660, 31920, 32704, 33288, 35040, 36480, 38836, 40880, 41610, 42560, 44384, 46720, 48545, 49056, 51072, 55480, 58254, 61320, 63840, 65408, 66576, 70080, 77672, 81760, 83220, 85120, 88768, 97090, 98112, 110960, 116508, 122640, 127680, 133152, 140160, 145635, 155344, 163520, 166440, 177536, 194180, 196224, 221920, 233016, 245280, 255360, 266304, 291270, 310688, 327040, 332880, 388360, 443840, 466032, 490560, 532608, 582540, 621376, 665760, 776720, 887680, 932064, 981120, 1165080, 1242752, 1331520, 1553440, 1864128, 2330160, 2663040, 3106880, 3728256, 4660320, 6213760, 9320640, 18641280]

約数ペア:

[(1, 18641280), (2, 9320640), (3, 6213760), (4, 4660320), (5, 3728256), (6, 3106880), (7, 2663040), (8, 2330160), (10, 1864128), (12, 1553440), (14, 1331520), (15, 1242752), (16, 1165080), (19, 981120), (20, 932064), (21, 887680), (24, 776720), (28, 665760), (30, 621376), (32, 582540), (35, 532608), (38, 490560), (40, 466032), (42, 443840), (48, 388360), (56, 332880), (57, 327040), (60, 310688), (64, 291270), (70, 266304), (73, 255360), (76, 245280), (80, 233016), (84, 221920), (95, 196224), (96, 194180), (105, 177536), (112, 166440), (114, 163520), (120, 155344), (128, 145635), (133, 140160), (140, 133152), (146, 127680), (152, 122640), (160, 116508), (168, 110960), (190, 98112), (192, 97090), (210, 88768), (219, 85120), (224, 83220), (228, 81760), (240, 77672), (266, 70080), (280, 66576), (285, 65408), (292, 63840), (304, 61320), (320, 58254), (336, 55480), (365, 51072), (380, 49056), (384, 48545), (399, 46720), (420, 44384), (438, 42560), (448, 41610), (456, 40880), (480, 38836), (511, 36480), (532, 35040), (560, 33288), (570, 32704), (584, 31920), (608, 30660), (640, 29127), (665, 28032), (672, 27740), (730, 25536), (760, 24528), (798, 23360), (840, 22192), (876, 21280), (896, 20805), (912, 20440), (960, 19418), (1022, 18240), (1064, 17520), (1095, 17024), (1120, 16644), (1140, 16352), (1168, 15960), (1216, 15330), (1330, 14016), (1344, 13870), (1387, 13440), (1460, 12768), (1520, 12264), (1533, 12160), (1596, 11680), (1680, 11096), (1752, 10640), (1824, 10220), (1920, 9709), (1995, 9344), (2044, 9120), (2128, 8760), (2190, 8512), (2240, 8322), (2280, 8176), (2336, 7980), (2432, 7665), (2555, 7296), (2660, 7008), (2688, 6935), (2774, 6720), (2920, 6384), (3040, 6132), (3066, 6080), (3192, 5840), (3360, 5548), (3504, 5320), (3648, 5110), (3990, 4672), (4088, 4560), (4161, 4480), (4256, 4380)]