71293520

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{5981}}^1$

素因数の和:6143

約数の個数: 40

約数和(自身を含む): 166897800

約数和(自身を除く): 95604280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 5981, 11920, 11962, 23924, 29905, 47848, 59810, 95696, 119620, 239240, 478480, 891169, 1782338, 3564676, 4455845, 7129352, 8911690, 14258704, 17823380, 35646760, 71293520]

約数ペア:

[(1, 71293520), (2, 35646760), (4, 17823380), (5, 14258704), (8, 8911690), (10, 7129352), (16, 4455845), (20, 3564676), (40, 1782338), (80, 891169), (149, 478480), (298, 239240), (596, 119620), (745, 95696), (1192, 59810), (1490, 47848), (2384, 29905), (2980, 23924), (5960, 11962), (5981, 11920)]