638893450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{937}}^1\times {\mathrm{1049}}^1$

素因数の和:2011

約数の個数: 48

約数和(自身を含む): 1282339800

約数和(自身を除く): 643446350

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 937, 1049, 1874, 2098, 4685, 5245, 9370, 10490, 12181, 13637, 23425, 24362, 26225, 27274, 46850, 52450, 60905, 68185, 121810, 136370, 304525, 340925, 609050, 681850, 982913, 1965826, 4914565, 9829130, 12777869, 24572825, 25555738, 49145650, 63889345, 127778690, 319446725, 638893450]

約数ペア:

[(1, 638893450), (2, 319446725), (5, 127778690), (10, 63889345), (13, 49145650), (25, 25555738), (26, 24572825), (50, 12777869), (65, 9829130), (130, 4914565), (325, 1965826), (650, 982913), (937, 681850), (1049, 609050), (1874, 340925), (2098, 304525), (4685, 136370), (5245, 121810), (9370, 68185), (10490, 60905), (12181, 52450), (13637, 46850), (23425, 27274), (24362, 26225)]