871660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1063}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 1876896

約数和(自身を除く): 1005236

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1063, 2126, 4252, 5315, 10630, 21260, 43583, 87166, 174332, 217915, 435830, 871660]

約数ペア:

[(1, 871660), (2, 435830), (4, 217915), (5, 174332), (10, 87166), (20, 43583), (41, 21260), (82, 10630), (164, 5315), (205, 4252), (410, 2126), (820, 1063)]