7217990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4271}}^1$

素因数の和:4304

約数の個数: 24

約数和(自身を含む): 14071968

約数和(自身を除く): 6853978

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 4271, 8542, 21355, 42710, 55523, 111046, 277615, 555230, 721799, 1443598, 3608995, 7217990]

約数ペア:

[(1, 7217990), (2, 3608995), (5, 1443598), (10, 721799), (13, 555230), (26, 277615), (65, 111046), (130, 55523), (169, 42710), (338, 21355), (845, 8542), (1690, 4271)]