18803740

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7177}}^1$

素因数の和:7317

約数の個数: 24

約数和(自身を含む): 39794832

約数和(自身を除く): 20991092

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7177, 14354, 28708, 35885, 71770, 143540, 940187, 1880374, 3760748, 4700935, 9401870, 18803740]

約数ペア:

[(1, 18803740), (2, 9401870), (4, 4700935), (5, 3760748), (10, 1880374), (20, 940187), (131, 143540), (262, 71770), (524, 35885), (655, 28708), (1310, 14354), (2620, 7177)]