71980475

素因数分解:

$5^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{977}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 102353568

約数和(自身を除く): 30373093

約数列:

[1, 5, 7, 25, 35, 175, 421, 977, 2105, 2947, 4885, 6839, 10525, 14735, 24425, 34195, 73675, 170975, 411317, 2056585, 2879219, 10282925, 14396095, 71980475]

約数ペア:

[(1, 71980475), (5, 14396095), (7, 10282925), (25, 2879219), (35, 2056585), (175, 411317), (421, 170975), (977, 73675), (2105, 34195), (2947, 24425), (4885, 14735), (6839, 10525)]