12790840

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2441}}^1$

素因数の和:2583

約数の個数: 32

約数和(自身を含む): 29010960

約数和(自身を除く): 16220120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2441, 2620, 4882, 5240, 9764, 12205, 19528, 24410, 48820, 97640, 319771, 639542, 1279084, 1598855, 2558168, 3197710, 6395420, 12790840]

約数ペア:

[(1, 12790840), (2, 6395420), (4, 3197710), (5, 2558168), (8, 1598855), (10, 1279084), (20, 639542), (40, 319771), (131, 97640), (262, 48820), (524, 24410), (655, 19528), (1048, 12205), (1310, 9764), (2441, 5240), (2620, 4882)]