85908580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{599}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 185068800

約数和(自身を除く): 99160220

約数列:

[1, 2, 4, 5, 10, 20, 71, 101, 142, 202, 284, 355, 404, 505, 599, 710, 1010, 1198, 1420, 2020, 2396, 2995, 5990, 7171, 11980, 14342, 28684, 35855, 42529, 60499, 71710, 85058, 120998, 143420, 170116, 212645, 241996, 302495, 425290, 604990, 850580, 1209980, 4295429, 8590858, 17181716, 21477145, 42954290, 85908580]

約数ペア:

[(1, 85908580), (2, 42954290), (4, 21477145), (5, 17181716), (10, 8590858), (20, 4295429), (71, 1209980), (101, 850580), (142, 604990), (202, 425290), (284, 302495), (355, 241996), (404, 212645), (505, 170116), (599, 143420), (710, 120998), (1010, 85058), (1198, 71710), (1420, 60499), (2020, 42529), (2396, 35855), (2995, 28684), (5990, 14342), (7171, 11980)]