18365540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22397}}^1$

素因数の和:22447

約数の個数: 24

約数和(自身を含む): 39510072

約数和(自身を除く): 21144532

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22397, 44794, 89588, 111985, 223970, 447940, 918277, 1836554, 3673108, 4591385, 9182770, 18365540]

約数ペア:

[(1, 18365540), (2, 9182770), (4, 4591385), (5, 3673108), (10, 1836554), (20, 918277), (41, 447940), (82, 223970), (164, 111985), (205, 89588), (410, 44794), (820, 22397)]