18869680

素因数分解:

$2^4\times 5^1\times {\mathrm{235871}}^1$

素因数の和:235884

約数の個数: 20

約数和(自身を含む): 43872192

約数和(自身を除く): 25002512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235871, 471742, 943484, 1179355, 1886968, 2358710, 3773936, 4717420, 9434840, 18869680]

約数ペア:

[(1, 18869680), (2, 9434840), (4, 4717420), (5, 3773936), (8, 2358710), (10, 1886968), (16, 1179355), (20, 943484), (40, 471742), (80, 235871)]