165987640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1471}}^1$

素因数の和:1533

約数の個数: 128

約数和(自身を含む): 474808320

約数和(自身を除く): 308820680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1471, 1612, 1736, 1820, 2015, 2170, 2821, 2942, 3224, 3640, 4030, 4340, 5642, 5884, 7355, 8060, 8680, 10297, 11284, 11768, 14105, 14710, 16120, 19123, 20594, 22568, 28210, 29420, 38246, 41188, 45601, 51485, 56420, 58840, 76492, 82376, 91202, 95615, 102970, 112840, 133861, 152984, 182404, 191230, 205940, 228005, 267722, 319207, 364808, 382460, 411880, 456010, 535444, 592813, 638414, 669305, 764920, 912020, 1070888, 1185626, 1276828, 1338610, 1596035, 1824040, 2371252, 2553656, 2677220, 2964065, 3192070, 4149691, 4742504, 5354440, 5928130, 6384140, 8299382, 11856260, 12768280, 16598764, 20748455, 23712520, 33197528, 41496910, 82993820, 165987640]

約数ペア:

[(1, 165987640), (2, 82993820), (4, 41496910), (5, 33197528), (7, 23712520), (8, 20748455), (10, 16598764), (13, 12768280), (14, 11856260), (20, 8299382), (26, 6384140), (28, 5928130), (31, 5354440), (35, 4742504), (40, 4149691), (52, 3192070), (56, 2964065), (62, 2677220), (65, 2553656), (70, 2371252), (91, 1824040), (104, 1596035), (124, 1338610), (130, 1276828), (140, 1185626), (155, 1070888), (182, 912020), (217, 764920), (248, 669305), (260, 638414), (280, 592813), (310, 535444), (364, 456010), (403, 411880), (434, 382460), (455, 364808), (520, 319207), (620, 267722), (728, 228005), (806, 205940), (868, 191230), (910, 182404), (1085, 152984), (1240, 133861), (1471, 112840), (1612, 102970), (1736, 95615), (1820, 91202), (2015, 82376), (2170, 76492), (2821, 58840), (2942, 56420), (3224, 51485), (3640, 45601), (4030, 41188), (4340, 38246), (5642, 29420), (5884, 28210), (7355, 22568), (8060, 20594), (8680, 19123), (10297, 16120), (11284, 14710), (11768, 14105)]