40639264

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{577}}^1$

素因数の和:689

約数の個数: 48

約数和(自身を含む): 83897856

約数和(自身を除く): 43258592

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 71, 124, 142, 248, 284, 496, 568, 577, 992, 1136, 1154, 2201, 2272, 2308, 4402, 4616, 8804, 9232, 17608, 17887, 18464, 35216, 35774, 40967, 70432, 71548, 81934, 143096, 163868, 286192, 327736, 572384, 655472, 1269977, 1310944, 2539954, 5079908, 10159816, 20319632, 40639264]

約数ペア:

[(1, 40639264), (2, 20319632), (4, 10159816), (8, 5079908), (16, 2539954), (31, 1310944), (32, 1269977), (62, 655472), (71, 572384), (124, 327736), (142, 286192), (248, 163868), (284, 143096), (496, 81934), (568, 71548), (577, 70432), (992, 40967), (1136, 35774), (1154, 35216), (2201, 18464), (2272, 17887), (2308, 17608), (4402, 9232), (4616, 8804)]