40513525

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:302

約数の個数: 36

約数和(自身を含む): 55913088

約数和(自身を除く): 15399563

約数列:

[1, 5, 13, 25, 43, 65, 169, 215, 223, 325, 559, 845, 1075, 1115, 2795, 2899, 4225, 5575, 7267, 9589, 13975, 14495, 36335, 37687, 47945, 72475, 124657, 181675, 188435, 239725, 623285, 942175, 1620541, 3116425, 8102705, 40513525]

約数ペア:

[(1, 40513525), (5, 8102705), (13, 3116425), (25, 1620541), (43, 942175), (65, 623285), (169, 239725), (215, 188435), (223, 181675), (325, 124657), (559, 72475), (845, 47945), (1075, 37687), (1115, 36335), (2795, 14495), (2899, 13975), (4225, 9589), (5575, 7267)]