64619620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248537}}^1$

素因数の和:248559

約数の個数: 24

約数和(自身を含む): 146140344

約数和(自身を除く): 81520724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248537, 497074, 994148, 1242685, 2485370, 3230981, 4970740, 6461962, 12923924, 16154905, 32309810, 64619620]

約数ペア:

[(1, 64619620), (2, 32309810), (4, 16154905), (5, 12923924), (10, 6461962), (13, 4970740), (20, 3230981), (26, 2485370), (52, 1242685), (65, 994148), (130, 497074), (260, 248537)]