64435280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:253

約数の個数: 160

約数和(自身を含む): 188987904

約数和(自身を除く): 124552624

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 53, 56, 65, 70, 80, 91, 104, 106, 112, 130, 140, 167, 182, 208, 212, 260, 265, 280, 334, 364, 371, 424, 455, 520, 530, 560, 668, 689, 728, 742, 835, 848, 910, 1040, 1060, 1169, 1336, 1378, 1456, 1484, 1670, 1820, 1855, 2120, 2171, 2338, 2672, 2756, 2968, 3340, 3445, 3640, 3710, 4240, 4342, 4676, 4823, 5512, 5845, 5936, 6680, 6890, 7280, 7420, 8684, 8851, 9352, 9646, 10855, 11024, 11690, 13360, 13780, 14840, 15197, 17368, 17702, 18704, 19292, 21710, 23380, 24115, 27560, 29680, 30394, 34736, 35404, 38584, 43420, 44255, 46760, 48230, 55120, 60788, 61957, 70808, 75985, 77168, 86840, 88510, 93520, 96460, 115063, 121576, 123914, 141616, 151970, 173680, 177020, 192920, 230126, 243152, 247828, 303940, 309785, 354040, 385840, 460252, 495656, 575315, 607880, 619570, 708080, 805441, 920504, 991312, 1150630, 1215760, 1239140, 1610882, 1841008, 2301260, 2478280, 3221764, 4027205, 4602520, 4956560, 6443528, 8054410, 9205040, 12887056, 16108820, 32217640, 64435280]

約数ペア:

[(1, 64435280), (2, 32217640), (4, 16108820), (5, 12887056), (7, 9205040), (8, 8054410), (10, 6443528), (13, 4956560), (14, 4602520), (16, 4027205), (20, 3221764), (26, 2478280), (28, 2301260), (35, 1841008), (40, 1610882), (52, 1239140), (53, 1215760), (56, 1150630), (65, 991312), (70, 920504), (80, 805441), (91, 708080), (104, 619570), (106, 607880), (112, 575315), (130, 495656), (140, 460252), (167, 385840), (182, 354040), (208, 309785), (212, 303940), (260, 247828), (265, 243152), (280, 230126), (334, 192920), (364, 177020), (371, 173680), (424, 151970), (455, 141616), (520, 123914), (530, 121576), (560, 115063), (668, 96460), (689, 93520), (728, 88510), (742, 86840), (835, 77168), (848, 75985), (910, 70808), (1040, 61957), (1060, 60788), (1169, 55120), (1336, 48230), (1378, 46760), (1456, 44255), (1484, 43420), (1670, 38584), (1820, 35404), (1855, 34736), (2120, 30394), (2171, 29680), (2338, 27560), (2672, 24115), (2756, 23380), (2968, 21710), (3340, 19292), (3445, 18704), (3640, 17702), (3710, 17368), (4240, 15197), (4342, 14840), (4676, 13780), (4823, 13360), (5512, 11690), (5845, 11024), (5936, 10855), (6680, 9646), (6890, 9352), (7280, 8851), (7420, 8684)]