645039680

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:664

約数の個数: 112

約数和(自身を含む): 1589464944

約数和(自身を除く): 944425264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 73, 80, 106, 146, 160, 212, 265, 292, 320, 365, 424, 521, 530, 584, 730, 848, 1042, 1060, 1168, 1460, 1696, 2084, 2120, 2336, 2605, 2920, 3392, 3869, 4168, 4240, 4672, 5210, 5840, 7738, 8336, 8480, 10420, 11680, 15476, 16672, 16960, 19345, 20840, 23360, 27613, 30952, 33344, 38033, 38690, 41680, 55226, 61904, 76066, 77380, 83360, 110452, 123808, 138065, 152132, 154760, 166720, 190165, 220904, 247616, 276130, 304264, 309520, 380330, 441808, 552260, 608528, 619040, 760660, 883616, 1104520, 1217056, 1238080, 1521320, 1767232, 2015749, 2209040, 2434112, 3042640, 4031498, 4418080, 6085280, 8062996, 8836160, 10078745, 12170560, 16125992, 20157490, 32251984, 40314980, 64503968, 80629960, 129007936, 161259920, 322519840, 645039680]

約数ペア:

[(1, 645039680), (2, 322519840), (4, 161259920), (5, 129007936), (8, 80629960), (10, 64503968), (16, 40314980), (20, 32251984), (32, 20157490), (40, 16125992), (53, 12170560), (64, 10078745), (73, 8836160), (80, 8062996), (106, 6085280), (146, 4418080), (160, 4031498), (212, 3042640), (265, 2434112), (292, 2209040), (320, 2015749), (365, 1767232), (424, 1521320), (521, 1238080), (530, 1217056), (584, 1104520), (730, 883616), (848, 760660), (1042, 619040), (1060, 608528), (1168, 552260), (1460, 441808), (1696, 380330), (2084, 309520), (2120, 304264), (2336, 276130), (2605, 247616), (2920, 220904), (3392, 190165), (3869, 166720), (4168, 154760), (4240, 152132), (4672, 138065), (5210, 123808), (5840, 110452), (7738, 83360), (8336, 77380), (8480, 76066), (10420, 61904), (11680, 55226), (15476, 41680), (16672, 38690), (16960, 38033), (19345, 33344), (20840, 30952), (23360, 27613)]