31153920

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 288

約数和(自身を含む): 121658880

約数和(自身を除く): 90504960

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, 61, 64, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 122, 128, 133, 140, 152, 160, 168, 183, 190, 192, 210, 224, 228, 240, 244, 256, 266, 280, 285, 304, 305, 320, 336, 366, 380, 384, 399, 420, 427, 448, 456, 480, 488, 532, 560, 570, 608, 610, 640, 665, 672, 732, 760, 768, 798, 840, 854, 896, 912, 915, 960, 976, 1064, 1120, 1140, 1159, 1216, 1220, 1280, 1281, 1330, 1344, 1464, 1520, 1596, 1680, 1708, 1792, 1824, 1830, 1920, 1952, 1995, 2128, 2135, 2240, 2280, 2318, 2432, 2440, 2562, 2660, 2688, 2928, 3040, 3192, 3360, 3416, 3477, 3648, 3660, 3840, 3904, 3990, 4256, 4270, 4480, 4560, 4636, 4864, 4880, 5124, 5320, 5376, 5795, 5856, 6080, 6384, 6405, 6720, 6832, 6954, 7296, 7320, 7808, 7980, 8113, 8512, 8540, 8960, 9120, 9272, 9760, 10248, 10640, 11590, 11712, 12160, 12768, 12810, 13440, 13664, 13908, 14592, 14640, 15616, 15960, 16226, 17024, 17080, 17385, 18240, 18544, 19520, 20496, 21280, 23180, 23424, 24320, 24339, 25536, 25620, 26880, 27328, 27816, 29280, 31920, 32452, 34048, 34160, 34770, 36480, 37088, 39040, 40565, 40992, 42560, 46360, 46848, 48678, 51072, 51240, 54656, 55632, 58560, 63840, 64904, 68320, 69540, 72960, 74176, 78080, 81130, 81984, 85120, 92720, 97356, 102144, 102480, 109312, 111264, 117120, 121695, 127680, 129808, 136640, 139080, 148352, 162260, 163968, 170240, 185440, 194712, 204960, 222528, 234240, 243390, 255360, 259616, 273280, 278160, 296704, 324520, 327936, 370880, 389424, 409920, 445056, 486780, 510720, 519232, 546560, 556320, 649040, 741760, 778848, 819840, 890112, 973560, 1038464, 1112640, 1298080, 1483520, 1557696, 1639680, 1947120, 2076928, 2225280, 2596160, 3115392, 3894240, 4450560, 5192320, 6230784, 7788480, 10384640, 15576960, 31153920]

約数ペア:

[(1, 31153920), (2, 15576960), (3, 10384640), (4, 7788480), (5, 6230784), (6, 5192320), (7, 4450560), (8, 3894240), (10, 3115392), (12, 2596160), (14, 2225280), (15, 2076928), (16, 1947120), (19, 1639680), (20, 1557696), (21, 1483520), (24, 1298080), (28, 1112640), (30, 1038464), (32, 973560), (35, 890112), (38, 819840), (40, 778848), (42, 741760), (48, 649040), (56, 556320), (57, 546560), (60, 519232), (61, 510720), (64, 486780), (70, 445056), (76, 409920), (80, 389424), (84, 370880), (95, 327936), (96, 324520), (105, 296704), (112, 278160), (114, 273280), (120, 259616), (122, 255360), (128, 243390), (133, 234240), (140, 222528), (152, 204960), (160, 194712), (168, 185440), (183, 170240), (190, 163968), (192, 162260), (210, 148352), (224, 139080), (228, 136640), (240, 129808), (244, 127680), (256, 121695), (266, 117120), (280, 111264), (285, 109312), (304, 102480), (305, 102144), (320, 97356), (336, 92720), (366, 85120), (380, 81984), (384, 81130), (399, 78080), (420, 74176), (427, 72960), (448, 69540), (456, 68320), (480, 64904), (488, 63840), (532, 58560), (560, 55632), (570, 54656), (608, 51240), (610, 51072), (640, 48678), (665, 46848), (672, 46360), (732, 42560), (760, 40992), (768, 40565), (798, 39040), (840, 37088), (854, 36480), (896, 34770), (912, 34160), (915, 34048), (960, 32452), (976, 31920), (1064, 29280), (1120, 27816), (1140, 27328), (1159, 26880), (1216, 25620), (1220, 25536), (1280, 24339), (1281, 24320), (1330, 23424), (1344, 23180), (1464, 21280), (1520, 20496), (1596, 19520), (1680, 18544), (1708, 18240), (1792, 17385), (1824, 17080), (1830, 17024), (1920, 16226), (1952, 15960), (1995, 15616), (2128, 14640), (2135, 14592), (2240, 13908), (2280, 13664), (2318, 13440), (2432, 12810), (2440, 12768), (2562, 12160), (2660, 11712), (2688, 11590), (2928, 10640), (3040, 10248), (3192, 9760), (3360, 9272), (3416, 9120), (3477, 8960), (3648, 8540), (3660, 8512), (3840, 8113), (3904, 7980), (3990, 7808), (4256, 7320), (4270, 7296), (4480, 6954), (4560, 6832), (4636, 6720), (4864, 6405), (4880, 6384), (5124, 6080), (5320, 5856), (5376, 5795)]