42028025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1453}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 56793240

約数和(自身を除く): 14765215

約数列:

[1, 5, 13, 25, 65, 89, 325, 445, 1157, 1453, 2225, 5785, 7265, 18889, 28925, 36325, 94445, 129317, 472225, 646585, 1681121, 3232925, 8405605, 42028025]

約数ペア:

[(1, 42028025), (5, 8405605), (13, 3232925), (25, 1681121), (65, 646585), (89, 472225), (325, 129317), (445, 94445), (1157, 36325), (1453, 28925), (2225, 18889), (5785, 7265)]