7989475

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 36

約数和(自身を含む): 11255232

約数和(自身を除く): 3265757

約数列:

[1, 5, 13, 25, 31, 61, 65, 155, 169, 305, 325, 403, 775, 793, 845, 1525, 1891, 2015, 3965, 4225, 5239, 9455, 10075, 10309, 19825, 24583, 26195, 47275, 51545, 122915, 130975, 257725, 319579, 614575, 1597895, 7989475]

約数ペア:

[(1, 7989475), (5, 1597895), (13, 614575), (25, 319579), (31, 257725), (61, 130975), (65, 122915), (155, 51545), (169, 47275), (305, 26195), (325, 24583), (403, 19825), (775, 10309), (793, 10075), (845, 9455), (1525, 5239), (1891, 4225), (2015, 3965)]