20161245640

素因数分解:

$2^3\times 5^1\times {\mathrm{2851}}^1\times {\mathrm{176791}}^1$

素因数の和:179653

約数の個数: 32

約数和(自身を含む): 45378970560

約数和(自身を除く): 25217724920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2851, 5702, 11404, 14255, 22808, 28510, 57020, 114040, 176791, 353582, 707164, 883955, 1414328, 1767910, 3535820, 7071640, 504031141, 1008062282, 2016124564, 2520155705, 4032249128, 5040311410, 10080622820, 20161245640]

約数ペア:

[(1, 20161245640), (2, 10080622820), (4, 5040311410), (5, 4032249128), (8, 2520155705), (10, 2016124564), (20, 1008062282), (40, 504031141), (2851, 7071640), (5702, 3535820), (11404, 1767910), (14255, 1414328), (22808, 883955), (28510, 707164), (57020, 353582), (114040, 176791)]