80602040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 186390720

約数和(自身を除く): 105788680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 101, 142, 202, 281, 284, 355, 404, 505, 562, 568, 710, 808, 1010, 1124, 1405, 1420, 2020, 2248, 2810, 2840, 4040, 5620, 7171, 11240, 14342, 19951, 28381, 28684, 35855, 39902, 56762, 57368, 71710, 79804, 99755, 113524, 141905, 143420, 159608, 199510, 227048, 283810, 286840, 399020, 567620, 798040, 1135240, 2015051, 4030102, 8060204, 10075255, 16120408, 20150510, 40301020, 80602040]

約数ペア:

[(1, 80602040), (2, 40301020), (4, 20150510), (5, 16120408), (8, 10075255), (10, 8060204), (20, 4030102), (40, 2015051), (71, 1135240), (101, 798040), (142, 567620), (202, 399020), (281, 286840), (284, 283810), (355, 227048), (404, 199510), (505, 159608), (562, 143420), (568, 141905), (710, 113524), (808, 99755), (1010, 79804), (1124, 71710), (1405, 57368), (1420, 56762), (2020, 39902), (2248, 35855), (2810, 28684), (2840, 28381), (4040, 19951), (5620, 14342), (7171, 11240)]