18085040

素因数分解:

$2^4\times 5^1\times {\mathrm{226063}}^1$

素因数の和:226076

約数の個数: 20

約数和(自身を含む): 42047904

約数和(自身を除く): 23962864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226063, 452126, 904252, 1130315, 1808504, 2260630, 3617008, 4521260, 9042520, 18085040]

約数ペア:

[(1, 18085040), (2, 9042520), (4, 4521260), (5, 3617008), (8, 2260630), (10, 1808504), (16, 1130315), (20, 904252), (40, 452126), (80, 226063)]