90628880

素因数分解:

$2^4\times 5^1\times {\mathrm{1132861}}^1$

素因数の和:1132874

約数の個数: 20

約数和(自身を含む): 210712332

約数和(自身を除く): 120083452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1132861, 2265722, 4531444, 5664305, 9062888, 11328610, 18125776, 22657220, 45314440, 90628880]

約数ペア:

[(1, 90628880), (2, 45314440), (4, 22657220), (5, 18125776), (8, 11328610), (10, 9062888), (16, 5664305), (20, 4531444), (40, 2265722), (80, 1132861)]