20201335

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{383}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 30523392

約数和(自身を除く): 10322057

約数列:

[1, 5, 7, 11, 35, 55, 77, 137, 383, 385, 685, 959, 1507, 1915, 2681, 4213, 4795, 7535, 10549, 13405, 21065, 29491, 52471, 52745, 147455, 262355, 367297, 577181, 1836485, 2885905, 4040267, 20201335]

約数ペア:

[(1, 20201335), (5, 4040267), (7, 2885905), (11, 1836485), (35, 577181), (55, 367297), (77, 262355), (137, 147455), (383, 52745), (385, 52471), (685, 29491), (959, 21065), (1507, 13405), (1915, 10549), (2681, 7535), (4213, 4795)]