16890620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{44449}}^1$

素因数の和:44477

約数の個数: 24

約数和(自身を含む): 37338000

約数和(自身を除く): 20447380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 44449, 88898, 177796, 222245, 444490, 844531, 888980, 1689062, 3378124, 4222655, 8445310, 16890620]

約数ペア:

[(1, 16890620), (2, 8445310), (4, 4222655), (5, 3378124), (10, 1689062), (19, 888980), (20, 844531), (38, 444490), (76, 222245), (95, 177796), (190, 88898), (380, 44449)]