20005316

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{503}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 35872704

約数和(自身を除く): 15867388

約数列:

[1, 2, 4, 61, 122, 163, 244, 326, 503, 652, 1006, 2012, 9943, 19886, 30683, 39772, 61366, 81989, 122732, 163978, 327956, 5001329, 10002658, 20005316]

約数ペア:

[(1, 20005316), (2, 10002658), (4, 5001329), (61, 327956), (122, 163978), (163, 122732), (244, 81989), (326, 61366), (503, 39772), (652, 30683), (1006, 19886), (2012, 9943)]