18831880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15187}}^1$

素因数の和:15229

約数の個数: 32

約数和(自身を含む): 43741440

約数和(自身を除く): 24909560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15187, 30374, 60748, 75935, 121496, 151870, 303740, 470797, 607480, 941594, 1883188, 2353985, 3766376, 4707970, 9415940, 18831880]

約数ペア:

[(1, 18831880), (2, 9415940), (4, 4707970), (5, 3766376), (8, 2353985), (10, 1883188), (20, 941594), (31, 607480), (40, 470797), (62, 303740), (124, 151870), (155, 121496), (248, 75935), (310, 60748), (620, 30374), (1240, 15187)]