90889880

素因数分解:

$2^3\times 5^1\times {\mathrm{797}}^1\times {\mathrm{2851}}^1$

素因数の和:3659

約数の個数: 32

約数和(自身を含む): 204830640

約数和(自身を除く): 113940760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 797, 1594, 2851, 3188, 3985, 5702, 6376, 7970, 11404, 14255, 15940, 22808, 28510, 31880, 57020, 114040, 2272247, 4544494, 9088988, 11361235, 18177976, 22722470, 45444940, 90889880]

約数ペア:

[(1, 90889880), (2, 45444940), (4, 22722470), (5, 18177976), (8, 11361235), (10, 9088988), (20, 4544494), (40, 2272247), (797, 114040), (1594, 57020), (2851, 31880), (3188, 28510), (3985, 22808), (5702, 15940), (6376, 14255), (7970, 11404)]