71133680

素因数分解:

$2^4\times 5^1\times {\mathrm{889171}}^1$

素因数の和:889184

約数の個数: 20

約数和(自身を含む): 165385992

約数和(自身を除く): 94252312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 889171, 1778342, 3556684, 4445855, 7113368, 8891710, 14226736, 17783420, 35566840, 71133680]

約数ペア:

[(1, 71133680), (2, 35566840), (4, 17783420), (5, 14226736), (8, 8891710), (10, 7113368), (16, 4445855), (20, 3556684), (40, 1778342), (80, 889171)]