15661355

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1279}}^1$

素因数の和:1394

約数の個数: 16

約数和(自身を含む): 19660800

約数和(自身を除く): 3999445

約数列:

[1, 5, 31, 79, 155, 395, 1279, 2449, 6395, 12245, 39649, 101041, 198245, 505205, 3132271, 15661355]

約数ペア:

[(1, 15661355), (5, 3132271), (31, 505205), (79, 198245), (155, 101041), (395, 39649), (1279, 12245), (2449, 6395)]