31128140

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2539}}^1$

素因数の和:3161

約数の個数: 24

約数和(自身を含む): 65501520

約数和(自身を除く): 34373380

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 2452, 2539, 3065, 5078, 6130, 10156, 12260, 12695, 25390, 50780, 1556407, 3112814, 6225628, 7782035, 15564070, 31128140]

約数ペア:

[(1, 31128140), (2, 15564070), (4, 7782035), (5, 6225628), (10, 3112814), (20, 1556407), (613, 50780), (1226, 25390), (2452, 12695), (2539, 12260), (3065, 10156), (5078, 6130)]