30531560

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1723}}^1$

素因数の和:2177

約数の個数: 32

約数和(自身を含む): 68891040

約数和(自身を除く): 38359480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1723, 1772, 2215, 3446, 3544, 4430, 6892, 8615, 8860, 13784, 17230, 17720, 34460, 68920, 763289, 1526578, 3053156, 3816445, 6106312, 7632890, 15265780, 30531560]

約数ペア:

[(1, 30531560), (2, 15265780), (4, 7632890), (5, 6106312), (8, 3816445), (10, 3053156), (20, 1526578), (40, 763289), (443, 68920), (886, 34460), (1723, 17720), (1772, 17230), (2215, 13784), (3446, 8860), (3544, 8615), (4430, 6892)]