20320465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{6971}}^1$

素因数の和:7040

約数の個数: 16

約数和(自身を含む): 27107136

約数和(自身を除く): 6786671

約数列:

[1, 5, 11, 53, 55, 265, 583, 2915, 6971, 34855, 76681, 369463, 383405, 1847315, 4064093, 20320465]

約数ペア:

[(1, 20320465), (5, 4064093), (11, 1847315), (53, 383405), (55, 369463), (265, 76681), (583, 34855), (2915, 6971)]