98721640

素因数分解:

$2^3\times 5^1\times {\mathrm{1571}}^2$

素因数の和:3153

約数の個数: 24

約数和(自身を含む): 222265170

約数和(自身を除く): 123543530

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1571, 3142, 6284, 7855, 12568, 15710, 31420, 62840, 2468041, 4936082, 9872164, 12340205, 19744328, 24680410, 49360820, 98721640]

約数ペア:

[(1, 98721640), (2, 49360820), (4, 24680410), (5, 19744328), (8, 12340205), (10, 9872164), (20, 4936082), (40, 2468041), (1571, 62840), (3142, 31420), (6284, 15710), (7855, 12568)]