20107850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{787}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 43384128

約数和(自身を除く): 23276278

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 73, 146, 175, 350, 365, 511, 730, 787, 1022, 1574, 1825, 2555, 3650, 3935, 5110, 5509, 7870, 11018, 12775, 19675, 25550, 27545, 39350, 55090, 57451, 114902, 137725, 275450, 287255, 402157, 574510, 804314, 1436275, 2010785, 2872550, 4021570, 10053925, 20107850]

約数ペア:

[(1, 20107850), (2, 10053925), (5, 4021570), (7, 2872550), (10, 2010785), (14, 1436275), (25, 804314), (35, 574510), (50, 402157), (70, 287255), (73, 275450), (146, 137725), (175, 114902), (350, 57451), (365, 55090), (511, 39350), (730, 27545), (787, 25550), (1022, 19675), (1574, 12775), (1825, 11018), (2555, 7870), (3650, 5509), (3935, 5110)]