80298025

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 101779200

約数和(自身を除く): 21481175

約数列:

[1, 5, 25, 89, 151, 239, 445, 755, 1195, 2225, 3775, 5975, 13439, 21271, 36089, 67195, 106355, 180445, 335975, 531775, 902225, 3211921, 16059605, 80298025]

約数ペア:

[(1, 80298025), (5, 16059605), (25, 3211921), (89, 902225), (151, 531775), (239, 335975), (445, 180445), (755, 106355), (1195, 67195), (2225, 36089), (3775, 21271), (5975, 13439)]