72190975

素因数分解:

$5^2\times {\mathrm{19}}^3\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 24

約数和(自身を含む): 94713680

約数和(自身を除く): 22522705

約数列:

[1, 5, 19, 25, 95, 361, 421, 475, 1805, 2105, 6859, 7999, 9025, 10525, 34295, 39995, 151981, 171475, 199975, 759905, 2887639, 3799525, 14438195, 72190975]

約数ペア:

[(1, 72190975), (5, 14438195), (19, 3799525), (25, 2887639), (95, 759905), (361, 199975), (421, 171475), (475, 151981), (1805, 39995), (2105, 34295), (6859, 10525), (7999, 9025)]