199912996

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 384072192

約数和(自身を除く): 184159196

約数列:

[1, 2, 4, 17, 34, 47, 68, 71, 94, 142, 188, 284, 799, 881, 1207, 1598, 1762, 2414, 3196, 3337, 3524, 4828, 6674, 13348, 14977, 29954, 41407, 56729, 59908, 62551, 82814, 113458, 125102, 165628, 226916, 250204, 703919, 1063367, 1407838, 2126734, 2815676, 2939897, 4253468, 5879794, 11759588, 49978249, 99956498, 199912996]

約数ペア:

[(1, 199912996), (2, 99956498), (4, 49978249), (17, 11759588), (34, 5879794), (47, 4253468), (68, 2939897), (71, 2815676), (94, 2126734), (142, 1407838), (188, 1063367), (284, 703919), (799, 250204), (881, 226916), (1207, 165628), (1598, 125102), (1762, 113458), (2414, 82814), (3196, 62551), (3337, 59908), (3524, 56729), (4828, 41407), (6674, 29954), (13348, 14977)]