72093820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{443}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 155151360

約数和(自身を除く): 83057540

約数列:

[1, 2, 4, 5, 10, 20, 79, 103, 158, 206, 316, 395, 412, 443, 515, 790, 886, 1030, 1580, 1772, 2060, 2215, 4430, 8137, 8860, 16274, 32548, 34997, 40685, 45629, 69994, 81370, 91258, 139988, 162740, 174985, 182516, 228145, 349970, 456290, 699940, 912580, 3604691, 7209382, 14418764, 18023455, 36046910, 72093820]

約数ペア:

[(1, 72093820), (2, 36046910), (4, 18023455), (5, 14418764), (10, 7209382), (20, 3604691), (79, 912580), (103, 699940), (158, 456290), (206, 349970), (316, 228145), (395, 182516), (412, 174985), (443, 162740), (515, 139988), (790, 91258), (886, 81370), (1030, 69994), (1580, 45629), (1772, 40685), (2060, 34997), (2215, 32548), (4430, 16274), (8137, 8860)]