18128680

素因数分解:

$2^3\times 5^1\times {\mathrm{453217}}^1$

素因数の和:453228

約数の個数: 16

約数和(自身を含む): 40789620

約数和(自身を除く): 22660940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 453217, 906434, 1812868, 2266085, 3625736, 4532170, 9064340, 18128680]

約数ペア:

[(1, 18128680), (2, 9064340), (4, 4532170), (5, 3625736), (8, 2266085), (10, 1812868), (20, 906434), (40, 453217)]