208871840

素因数分解:

$2^5\times 5^1\times {\mathrm{1305449}}^1$

素因数の和:1305464

約数の個数: 24

約数和(自身を含む): 493460100

約数和(自身を除く): 284588260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1305449, 2610898, 5221796, 6527245, 10443592, 13054490, 20887184, 26108980, 41774368, 52217960, 104435920, 208871840]

約数ペア:

[(1, 208871840), (2, 104435920), (4, 52217960), (5, 41774368), (8, 26108980), (10, 20887184), (16, 13054490), (20, 10443592), (32, 6527245), (40, 5221796), (80, 2610898), (160, 1305449)]