90148880

素因数分解:

$2^4\times 5^1\times {\mathrm{1126861}}^1$

素因数の和:1126874

約数の個数: 20

約数和(自身を含む): 209596332

約数和(自身を除く): 119447452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1126861, 2253722, 4507444, 5634305, 9014888, 11268610, 18029776, 22537220, 45074440, 90148880]

約数ペア:

[(1, 90148880), (2, 45074440), (4, 22537220), (5, 18029776), (8, 11268610), (10, 9014888), (16, 5634305), (20, 4507444), (40, 2253722), (80, 1126861)]