2642620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1861}}^1$

素因数の和:1941

約数の個数: 24

約数和(自身を含む): 5630688

約数和(自身を除く): 2988068

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1861, 3722, 7444, 9305, 18610, 37220, 132131, 264262, 528524, 660655, 1321310, 2642620]

約数ペア:

[(1, 2642620), (2, 1321310), (4, 660655), (5, 528524), (10, 264262), (20, 132131), (71, 37220), (142, 18610), (284, 9305), (355, 7444), (710, 3722), (1420, 1861)]