91220840

素因数分解:

$2^3\times 5^1\times {\mathrm{2280521}}^1$

素因数の和:2280532

約数の個数: 16

約数和(自身を含む): 205246980

約数和(自身を除く): 114026140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2280521, 4561042, 9122084, 11402605, 18244168, 22805210, 45610420, 91220840]

約数ペア:

[(1, 91220840), (2, 45610420), (4, 22805210), (5, 18244168), (8, 11402605), (10, 9122084), (20, 4561042), (40, 2280521)]