40665410

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{10141}}^1$

素因数の和:10549

約数の個数: 16

約数和(自身を含む): 73387512

約数和(自身を除く): 32722102

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 10141, 20282, 50705, 101410, 4066541, 8133082, 20332705, 40665410]

約数ペア:

[(1, 40665410), (2, 20332705), (5, 8133082), (10, 4066541), (401, 101410), (802, 50705), (2005, 20282), (4010, 10141)]