1989160

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^2$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 4495770

約数和(自身を除く): 2506610

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 49729, 99458, 198916, 248645, 397832, 497290, 994580, 1989160]

約数ペア:

[(1, 1989160), (2, 994580), (4, 497290), (5, 397832), (8, 248645), (10, 198916), (20, 99458), (40, 49729), (223, 8920), (446, 4460), (892, 2230), (1115, 1784)]