20928580

素因数分解:

$2^2\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{1033}}^1$

素因数の和:2055

約数の個数: 24

約数和(自身を含む): 44035992

約数和(自身を除く): 23107412

約数列:

[1, 2, 4, 5, 10, 20, 1013, 1033, 2026, 2066, 4052, 4132, 5065, 5165, 10130, 10330, 20260, 20660, 1046429, 2092858, 4185716, 5232145, 10464290, 20928580]

約数ペア:

[(1, 20928580), (2, 10464290), (4, 5232145), (5, 4185716), (10, 2092858), (20, 1046429), (1013, 20660), (1033, 20260), (2026, 10330), (2066, 10130), (4052, 5165), (4132, 5065)]