490637680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{27751}}^1$

素因数の和:27794

約数の個数: 80

約数和(自身を含む): 1300791744

約数和(自身を除く): 810154064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 8840, 17680, 27751, 55502, 111004, 138755, 222008, 277510, 360763, 444016, 471767, 555020, 721526, 943534, 1110040, 1443052, 1803815, 1887068, 2220080, 2358835, 2886104, 3607630, 3774136, 4717670, 5772208, 6132971, 7215260, 7548272, 9435340, 12265942, 14430520, 18870680, 24531884, 28861040, 30664855, 37741360, 49063768, 61329710, 98127536, 122659420, 245318840, 490637680]

約数ペア:

[(1, 490637680), (2, 245318840), (4, 122659420), (5, 98127536), (8, 61329710), (10, 49063768), (13, 37741360), (16, 30664855), (17, 28861040), (20, 24531884), (26, 18870680), (34, 14430520), (40, 12265942), (52, 9435340), (65, 7548272), (68, 7215260), (80, 6132971), (85, 5772208), (104, 4717670), (130, 3774136), (136, 3607630), (170, 2886104), (208, 2358835), (221, 2220080), (260, 1887068), (272, 1803815), (340, 1443052), (442, 1110040), (520, 943534), (680, 721526), (884, 555020), (1040, 471767), (1105, 444016), (1360, 360763), (1768, 277510), (2210, 222008), (3536, 138755), (4420, 111004), (8840, 55502), (17680, 27751)]