71250040

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4231}}^1$

素因数の和:4663

約数の個数: 32

約数和(自身を含む): 160731360

約数和(自身を除く): 89481320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 4231, 8420, 8462, 16840, 16924, 21155, 33848, 42310, 84620, 169240, 1781251, 3562502, 7125004, 8906255, 14250008, 17812510, 35625020, 71250040]

約数ペア:

[(1, 71250040), (2, 35625020), (4, 17812510), (5, 14250008), (8, 8906255), (10, 7125004), (20, 3562502), (40, 1781251), (421, 169240), (842, 84620), (1684, 42310), (2105, 33848), (3368, 21155), (4210, 16924), (4231, 16840), (8420, 8462)]