1990520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{7109}}^1$

素因数の和:7127

約数の個数: 32

約数和(自身を含む): 5119200

約数和(自身を除く): 3128680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 7109, 14218, 28436, 35545, 49763, 56872, 71090, 99526, 142180, 199052, 248815, 284360, 398104, 497630, 995260, 1990520]

約数ペア:

[(1, 1990520), (2, 995260), (4, 497630), (5, 398104), (7, 284360), (8, 248815), (10, 199052), (14, 142180), (20, 99526), (28, 71090), (35, 56872), (40, 49763), (56, 35545), (70, 28436), (140, 14218), (280, 7109)]