56405240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19861}}^1$

素因数の和:19943

約数の個数: 32

約数和(自身を含む): 128705760

約数和(自身を除く): 72300520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 19861, 39722, 79444, 99305, 158888, 198610, 397220, 794440, 1410131, 2820262, 5640524, 7050655, 11281048, 14101310, 28202620, 56405240]

約数ペア:

[(1, 56405240), (2, 28202620), (4, 14101310), (5, 11281048), (8, 7050655), (10, 5640524), (20, 2820262), (40, 1410131), (71, 794440), (142, 397220), (284, 198610), (355, 158888), (568, 99305), (710, 79444), (1420, 39722), (2840, 19861)]