11971580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{19309}}^1$

素因数の和:19349

約数の個数: 24

約数和(自身を含む): 25952640

約数和(自身を除く): 13981060

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 19309, 38618, 77236, 96545, 193090, 386180, 598579, 1197158, 2394316, 2992895, 5985790, 11971580]

約数ペア:

[(1, 11971580), (2, 5985790), (4, 2992895), (5, 2394316), (10, 1197158), (20, 598579), (31, 386180), (62, 193090), (124, 96545), (155, 77236), (310, 38618), (620, 19309)]