8216870

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 15367968

約数和(自身を除く): 7151098

約数列:

[1, 2, 5, 10, 43, 86, 97, 194, 197, 215, 394, 430, 485, 970, 985, 1970, 4171, 8342, 8471, 16942, 19109, 20855, 38218, 41710, 42355, 84710, 95545, 191090, 821687, 1643374, 4108435, 8216870]

約数ペア:

[(1, 8216870), (2, 4108435), (5, 1643374), (10, 821687), (43, 191090), (86, 95545), (97, 84710), (194, 42355), (197, 41710), (215, 38218), (394, 20855), (430, 19109), (485, 16942), (970, 8471), (985, 8342), (1970, 4171)]