42821960

素因数分解:

$2^3\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1061}}^1$

素因数の和:2081

約数の個数: 32

約数和(自身を含む): 96535800

約数和(自身を除く): 53713840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1009, 1061, 2018, 2122, 4036, 4244, 5045, 5305, 8072, 8488, 10090, 10610, 20180, 21220, 40360, 42440, 1070549, 2141098, 4282196, 5352745, 8564392, 10705490, 21410980, 42821960]

約数ペア:

[(1, 42821960), (2, 21410980), (4, 10705490), (5, 8564392), (8, 5352745), (10, 4282196), (20, 2141098), (40, 1070549), (1009, 42440), (1061, 40360), (2018, 21220), (2122, 20180), (4036, 10610), (4244, 10090), (5045, 8488), (5305, 8072)]