12668725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 16740000

約数和(自身を除く): 4071275

約数列:

[1, 5, 19, 25, 95, 149, 179, 475, 745, 895, 2831, 3401, 3725, 4475, 14155, 17005, 26671, 70775, 85025, 133355, 506749, 666775, 2533745, 12668725]

約数ペア:

[(1, 12668725), (5, 2533745), (19, 666775), (25, 506749), (95, 133355), (149, 85025), (179, 70775), (475, 26671), (745, 17005), (895, 14155), (2831, 4475), (3401, 3725)]