89729680

素因数分解:

$2^4\times 5^1\times {\mathrm{1121621}}^1$

素因数の和:1121634

約数の個数: 20

約数和(自身を含む): 208621692

約数和(自身を除く): 118892012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1121621, 2243242, 4486484, 5608105, 8972968, 11216210, 17945936, 22432420, 44864840, 89729680]

約数ペア:

[(1, 89729680), (2, 44864840), (4, 22432420), (5, 17945936), (8, 11216210), (10, 8972968), (16, 5608105), (20, 4486484), (40, 2243242), (80, 1121621)]