72820420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{49877}}^1$

素因数の和:49959

約数の個数: 24

約数和(自身を含む): 155020824

約数和(自身を除く): 82200404

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 49877, 99754, 199508, 249385, 498770, 997540, 3641021, 7282042, 14564084, 18205105, 36410210, 72820420]

約数ペア:

[(1, 72820420), (2, 36410210), (4, 18205105), (5, 14564084), (10, 7282042), (20, 3641021), (73, 997540), (146, 498770), (292, 249385), (365, 199508), (730, 99754), (1460, 49877)]