18624920

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1297}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 42055200

約数和(自身を除く): 23430280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1297, 1436, 1795, 2594, 2872, 3590, 5188, 6485, 7180, 10376, 12970, 14360, 25940, 51880, 465623, 931246, 1862492, 2328115, 3724984, 4656230, 9312460, 18624920]

約数ペア:

[(1, 18624920), (2, 9312460), (4, 4656230), (5, 3724984), (8, 2328115), (10, 1862492), (20, 931246), (40, 465623), (359, 51880), (718, 25940), (1297, 14360), (1436, 12970), (1795, 10376), (2594, 7180), (2872, 6485), (3590, 5188)]