19810660

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2699}}^1$

素因数の和:3075

約数の個数: 24

約数和(自身を含む): 41731200

約数和(自身を除く): 21920540

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 2699, 3670, 5398, 7340, 10796, 13495, 26990, 53980, 990533, 1981066, 3962132, 4952665, 9905330, 19810660]

約数ペア:

[(1, 19810660), (2, 9905330), (4, 4952665), (5, 3962132), (10, 1981066), (20, 990533), (367, 53980), (734, 26990), (1468, 13495), (1835, 10796), (2699, 7340), (3670, 5398)]