19807870

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{409}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 37195200

約数和(自身を除く): 17387330

約数列:

[1, 2, 5, 10, 29, 58, 145, 167, 290, 334, 409, 818, 835, 1670, 2045, 4090, 4843, 9686, 11861, 23722, 24215, 48430, 59305, 68303, 118610, 136606, 341515, 683030, 1980787, 3961574, 9903935, 19807870]

約数ペア:

[(1, 19807870), (2, 9903935), (5, 3961574), (10, 1980787), (29, 683030), (58, 341515), (145, 136606), (167, 118610), (290, 68303), (334, 59305), (409, 48430), (818, 24215), (835, 23722), (1670, 11861), (2045, 9686), (4090, 4843)]