12689425

素因数分解:

$5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1229}}^1$

素因数の和:1305

約数の個数: 24

約数和(自身を含む): 18302400

約数和(自身を除く): 5612975

約数列:

[1, 5, 7, 25, 35, 59, 175, 295, 413, 1229, 1475, 2065, 6145, 8603, 10325, 30725, 43015, 72511, 215075, 362555, 507577, 1812775, 2537885, 12689425]

約数ペア:

[(1, 12689425), (5, 2537885), (7, 1812775), (25, 507577), (35, 362555), (59, 215075), (175, 72511), (295, 43015), (413, 30725), (1229, 10325), (1475, 8603), (2065, 6145)]