20783540

素因数分解:

$2^2\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1801}}^1$

素因数の和:2387

約数の個数: 24

約数和(自身を含む): 43745352

約数和(自身を除く): 22961812

約数列:

[1, 2, 4, 5, 10, 20, 577, 1154, 1801, 2308, 2885, 3602, 5770, 7204, 9005, 11540, 18010, 36020, 1039177, 2078354, 4156708, 5195885, 10391770, 20783540]

約数ペア:

[(1, 20783540), (2, 10391770), (4, 5195885), (5, 4156708), (10, 2078354), (20, 1039177), (577, 36020), (1154, 18010), (1801, 11540), (2308, 9005), (2885, 7204), (3602, 5770)]