661298680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2361781}}^1$

素因数の和:2361799

約数の個数: 32

約数和(自身を含む): 1700483040

約数和(自身を除く): 1039184360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2361781, 4723562, 9447124, 11808905, 16532467, 18894248, 23617810, 33064934, 47235620, 66129868, 82662335, 94471240, 132259736, 165324670, 330649340, 661298680]

約数ペア:

[(1, 661298680), (2, 330649340), (4, 165324670), (5, 132259736), (7, 94471240), (8, 82662335), (10, 66129868), (14, 47235620), (20, 33064934), (28, 23617810), (35, 18894248), (40, 16532467), (56, 11808905), (70, 9447124), (140, 4723562), (280, 2361781)]