20370720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:123

約数の個数: 144

約数和(自身を含む): 68076288

約数和(自身を除く): 47705568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 37, 40, 48, 60, 62, 74, 80, 93, 96, 111, 120, 124, 148, 155, 160, 185, 186, 222, 240, 248, 296, 310, 370, 372, 444, 465, 480, 496, 555, 592, 620, 740, 744, 888, 930, 992, 1110, 1147, 1184, 1240, 1369, 1480, 1488, 1776, 1860, 2220, 2294, 2480, 2738, 2960, 2976, 3441, 3552, 3720, 4107, 4440, 4588, 4960, 5476, 5735, 5920, 6845, 6882, 7440, 8214, 8880, 9176, 10952, 11470, 13690, 13764, 14880, 16428, 17205, 17760, 18352, 20535, 21904, 22940, 27380, 27528, 32856, 34410, 36704, 41070, 42439, 43808, 45880, 54760, 55056, 65712, 68820, 82140, 84878, 91760, 109520, 110112, 127317, 131424, 137640, 164280, 169756, 183520, 212195, 219040, 254634, 275280, 328560, 339512, 424390, 509268, 550560, 636585, 657120, 679024, 848780, 1018536, 1273170, 1358048, 1697560, 2037072, 2546340, 3395120, 4074144, 5092680, 6790240, 10185360, 20370720]

約数ペア:

[(1, 20370720), (2, 10185360), (3, 6790240), (4, 5092680), (5, 4074144), (6, 3395120), (8, 2546340), (10, 2037072), (12, 1697560), (15, 1358048), (16, 1273170), (20, 1018536), (24, 848780), (30, 679024), (31, 657120), (32, 636585), (37, 550560), (40, 509268), (48, 424390), (60, 339512), (62, 328560), (74, 275280), (80, 254634), (93, 219040), (96, 212195), (111, 183520), (120, 169756), (124, 164280), (148, 137640), (155, 131424), (160, 127317), (185, 110112), (186, 109520), (222, 91760), (240, 84878), (248, 82140), (296, 68820), (310, 65712), (370, 55056), (372, 54760), (444, 45880), (465, 43808), (480, 42439), (496, 41070), (555, 36704), (592, 34410), (620, 32856), (740, 27528), (744, 27380), (888, 22940), (930, 21904), (992, 20535), (1110, 18352), (1147, 17760), (1184, 17205), (1240, 16428), (1369, 14880), (1480, 13764), (1488, 13690), (1776, 11470), (1860, 10952), (2220, 9176), (2294, 8880), (2480, 8214), (2738, 7440), (2960, 6882), (2976, 6845), (3441, 5920), (3552, 5735), (3720, 5476), (4107, 4960), (4440, 4588)]