90204740

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{6971}}^1$

素因数の和:7627

約数の個数: 24

約数和(自身を含む): 189749952

約数和(自身を除く): 99545212

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6470, 6971, 12940, 13942, 27884, 34855, 69710, 139420, 4510237, 9020474, 18040948, 22551185, 45102370, 90204740]

約数ペア:

[(1, 90204740), (2, 45102370), (4, 22551185), (5, 18040948), (10, 9020474), (20, 4510237), (647, 139420), (1294, 69710), (2588, 34855), (3235, 27884), (6470, 13942), (6971, 12940)]