1901690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{3881}}^1$

素因数の和:3902

約数の個数: 24

約数和(自身を含む): 3982932

約数和(自身を除く): 2081242

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 3881, 7762, 19405, 27167, 38810, 54334, 135835, 190169, 271670, 380338, 950845, 1901690]

約数ペア:

[(1, 1901690), (2, 950845), (5, 380338), (7, 271670), (10, 190169), (14, 135835), (35, 54334), (49, 38810), (70, 27167), (98, 19405), (245, 7762), (490, 3881)]