20199078885

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{887}}^1\times {\mathrm{79903}}^1$

素因数の和:80817

約数の個数: 32

約数和(自身を含む): 34058280960

約数和(自身を除く): 13859202075

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 887, 2661, 4435, 13305, 16853, 50559, 79903, 84265, 239709, 252795, 399515, 1198545, 1518157, 4554471, 7590785, 22772355, 70873961, 212621883, 354369805, 1063109415, 1346605259, 4039815777, 6733026295, 20199078885]

約数ペア:

[(1, 20199078885), (3, 6733026295), (5, 4039815777), (15, 1346605259), (19, 1063109415), (57, 354369805), (95, 212621883), (285, 70873961), (887, 22772355), (2661, 7590785), (4435, 4554471), (13305, 1518157), (16853, 1198545), (50559, 399515), (79903, 252795), (84265, 239709)]