99561680

素因数分解:

$2^4\times 5^1\times {\mathrm{1244521}}^1$

素因数の和:1244534

約数の個数: 20

約数和(自身を含む): 231481092

約数和(自身を除く): 131919412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1244521, 2489042, 4978084, 6222605, 9956168, 12445210, 19912336, 24890420, 49780840, 99561680]

約数ペア:

[(1, 99561680), (2, 49780840), (4, 24890420), (5, 19912336), (8, 12445210), (10, 9956168), (16, 6222605), (20, 4978084), (40, 2489042), (80, 1244521)]