72100087720

素因数分解:

$2^3\times 5^1\times {\mathrm{1802502193}}^1$

素因数の和:1802502204

約数の個数: 16

約数和(自身を含む): 162225197460

約数和(自身を除く): 90125109740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1802502193, 3605004386, 7210008772, 9012510965, 14420017544, 18025021930, 36050043860, 72100087720]

約数ペア:

[(1, 72100087720), (2, 36050043860), (4, 18025021930), (5, 14420017544), (8, 9012510965), (10, 7210008772), (20, 3605004386), (40, 1802502193)]