12121525

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 17245920

約数和(自身を除く): 5124395

約数列:

[1, 5, 13, 19, 25, 65, 95, 151, 169, 247, 325, 475, 755, 845, 1235, 1963, 2869, 3211, 3775, 4225, 6175, 9815, 14345, 16055, 25519, 37297, 49075, 71725, 80275, 127595, 186485, 484861, 637975, 932425, 2424305, 12121525]

約数ペア:

[(1, 12121525), (5, 2424305), (13, 932425), (19, 637975), (25, 484861), (65, 186485), (95, 127595), (151, 80275), (169, 71725), (247, 49075), (325, 37297), (475, 25519), (755, 16055), (845, 14345), (1235, 9815), (1963, 6175), (2869, 4225), (3211, 3775)]