161204080

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:466

約数の個数: 80

約数和(自身を含む): 385207488

約数和(自身を除く): 224003408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 101, 142, 202, 281, 284, 355, 404, 505, 562, 568, 710, 808, 1010, 1124, 1136, 1405, 1420, 1616, 2020, 2248, 2810, 2840, 4040, 4496, 5620, 5680, 7171, 8080, 11240, 14342, 19951, 22480, 28381, 28684, 35855, 39902, 56762, 57368, 71710, 79804, 99755, 113524, 114736, 141905, 143420, 159608, 199510, 227048, 283810, 286840, 319216, 399020, 454096, 567620, 573680, 798040, 1135240, 1596080, 2015051, 2270480, 4030102, 8060204, 10075255, 16120408, 20150510, 32240816, 40301020, 80602040, 161204080]

約数ペア:

[(1, 161204080), (2, 80602040), (4, 40301020), (5, 32240816), (8, 20150510), (10, 16120408), (16, 10075255), (20, 8060204), (40, 4030102), (71, 2270480), (80, 2015051), (101, 1596080), (142, 1135240), (202, 798040), (281, 573680), (284, 567620), (355, 454096), (404, 399020), (505, 319216), (562, 286840), (568, 283810), (710, 227048), (808, 199510), (1010, 159608), (1124, 143420), (1136, 141905), (1405, 114736), (1420, 113524), (1616, 99755), (2020, 79804), (2248, 71710), (2810, 57368), (2840, 56762), (4040, 39902), (4496, 35855), (5620, 28684), (5680, 28381), (7171, 22480), (8080, 19951), (11240, 14342)]