8915660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 20575296

約数和(自身を除く): 11659636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 647, 689, 1060, 1294, 1378, 2588, 2756, 3235, 3445, 6470, 6890, 8411, 12940, 13780, 16822, 33644, 34291, 42055, 68582, 84110, 137164, 168220, 171455, 342910, 445783, 685820, 891566, 1783132, 2228915, 4457830, 8915660]

約数ペア:

[(1, 8915660), (2, 4457830), (4, 2228915), (5, 1783132), (10, 891566), (13, 685820), (20, 445783), (26, 342910), (52, 171455), (53, 168220), (65, 137164), (106, 84110), (130, 68582), (212, 42055), (260, 34291), (265, 33644), (530, 16822), (647, 13780), (689, 12940), (1060, 8411), (1294, 6890), (1378, 6470), (2588, 3445), (2756, 3235)]