18815640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{156797}}^1$

素因数の和:156811

約数の個数: 32

約数和(自身を含む): 56447280

約数和(自身を除く): 37631640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 156797, 313594, 470391, 627188, 783985, 940782, 1254376, 1567970, 1881564, 2351955, 3135940, 3763128, 4703910, 6271880, 9407820, 18815640]

約数ペア:

[(1, 18815640), (2, 9407820), (3, 6271880), (4, 4703910), (5, 3763128), (6, 3135940), (8, 2351955), (10, 1881564), (12, 1567970), (15, 1254376), (20, 940782), (24, 783985), (30, 627188), (40, 470391), (60, 313594), (120, 156797)]