90945820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{649613}}^1$

素因数の和:649629

約数の個数: 24

約数和(自身を含む): 218270304

約数和(自身を除く): 127324484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 649613, 1299226, 2598452, 3248065, 4547291, 6496130, 9094582, 12992260, 18189164, 22736455, 45472910, 90945820]

約数ペア:

[(1, 90945820), (2, 45472910), (4, 22736455), (5, 18189164), (7, 12992260), (10, 9094582), (14, 6496130), (20, 4547291), (28, 3248065), (35, 2598452), (70, 1299226), (140, 649613)]