208999870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{11279}}^1$

素因数の和:11412

約数の個数: 32

約数和(自身を含む): 402019200

約数和(自身を除く): 193019330

約数列:

[1, 2, 5, 10, 17, 34, 85, 109, 170, 218, 545, 1090, 1853, 3706, 9265, 11279, 18530, 22558, 56395, 112790, 191743, 383486, 958715, 1229411, 1917430, 2458822, 6147055, 12294110, 20899987, 41799974, 104499935, 208999870]

約数ペア:

[(1, 208999870), (2, 104499935), (5, 41799974), (10, 20899987), (17, 12294110), (34, 6147055), (85, 2458822), (109, 1917430), (170, 1229411), (218, 958715), (545, 383486), (1090, 191743), (1853, 112790), (3706, 56395), (9265, 22558), (11279, 18530)]