18660140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{30097}}^1$

素因数の和:30137

約数の個数: 24

約数和(自身を含む): 40451712

約数和(自身を除く): 21791572

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 30097, 60194, 120388, 150485, 300970, 601940, 933007, 1866014, 3732028, 4665035, 9330070, 18660140]

約数ペア:

[(1, 18660140), (2, 9330070), (4, 4665035), (5, 3732028), (10, 1866014), (20, 933007), (31, 601940), (62, 300970), (124, 150485), (155, 120388), (310, 60194), (620, 30097)]