90451120

素因数分解:

$2^4\times 5^1\times {\mathrm{1130639}}^1$

素因数の和:1130652

約数の個数: 20

約数和(自身を含む): 210299040

約数和(自身を除く): 119847920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1130639, 2261278, 4522556, 5653195, 9045112, 11306390, 18090224, 22612780, 45225560, 90451120]

約数ペア:

[(1, 90451120), (2, 45225560), (4, 22612780), (5, 18090224), (8, 11306390), (10, 9045112), (16, 5653195), (20, 4522556), (40, 2261278), (80, 1130639)]