12129640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4271}}^1$

素因数の和:4353

約数の個数: 32

約数和(自身を含む): 27682560

約数和(自身を除く): 15552920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4271, 8542, 17084, 21355, 34168, 42710, 85420, 170840, 303241, 606482, 1212964, 1516205, 2425928, 3032410, 6064820, 12129640]

約数ペア:

[(1, 12129640), (2, 6064820), (4, 3032410), (5, 2425928), (8, 1516205), (10, 1212964), (20, 606482), (40, 303241), (71, 170840), (142, 85420), (284, 42710), (355, 34168), (568, 21355), (710, 17084), (1420, 8542), (2840, 4271)]