251015620

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{8429}}^1$

素因数の和:9927

約数の個数: 24

約数和(自身を含む): 527549400

約数和(自身を除く): 276533780

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 5956, 7445, 8429, 14890, 16858, 29780, 33716, 42145, 84290, 168580, 12550781, 25101562, 50203124, 62753905, 125507810, 251015620]

約数ペア:

[(1, 251015620), (2, 125507810), (4, 62753905), (5, 50203124), (10, 25101562), (20, 12550781), (1489, 168580), (2978, 84290), (5956, 42145), (7445, 33716), (8429, 29780), (14890, 16858)]