20523380

素因数分解:

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

素因数の和:2035

約数の個数: 18

約数和(自身を含む): 43141686

約数和(自身を除く): 22618306

約数列:

[1, 2, 4, 5, 10, 20, 1013, 2026, 4052, 5065, 10130, 20260, 1026169, 2052338, 4104676, 5130845, 10261690, 20523380]

約数ペア:

[(1, 20523380), (2, 10261690), (4, 5130845), (5, 4104676), (10, 2052338), (20, 1026169), (1013, 20260), (2026, 10130), (4052, 5065)]