861740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3917}}^1$

素因数の和:3937

約数の個数: 24

約数和(自身を含む): 1974672

約数和(自身を除く): 1112932

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 3917, 7834, 15668, 19585, 39170, 43087, 78340, 86174, 172348, 215435, 430870, 861740]

約数ペア:

[(1, 861740), (2, 430870), (4, 215435), (5, 172348), (10, 86174), (11, 78340), (20, 43087), (22, 39170), (44, 19585), (55, 15668), (110, 7834), (220, 3917)]