20739528020

素因数分解:

$2^2\times 5^1\times {\mathrm{17609}}^1\times {\mathrm{58889}}^1$

素因数の和:76507

約数の個数: 24

約数和(自身を含む): 43556221800

約数和(自身を除く): 22816693780

約数列:

[1, 2, 4, 5, 10, 20, 17609, 35218, 58889, 70436, 88045, 117778, 176090, 235556, 294445, 352180, 588890, 1177780, 1036976401, 2073952802, 4147905604, 5184882005, 10369764010, 20739528020]

約数ペア:

[(1, 20739528020), (2, 10369764010), (4, 5184882005), (5, 4147905604), (10, 2073952802), (20, 1036976401), (17609, 1177780), (35218, 588890), (58889, 352180), (70436, 294445), (88045, 235556), (117778, 176090)]