19985770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5387}}^1$

素因数の和:5454

約数の個数: 32

約数和(自身を含む): 41897088

約数和(自身を除く): 21911318

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5387, 10774, 26935, 37709, 53870, 75418, 188545, 285511, 377090, 571022, 1427555, 1998577, 2855110, 3997154, 9992885, 19985770]

約数ペア:

[(1, 19985770), (2, 9992885), (5, 3997154), (7, 2855110), (10, 1998577), (14, 1427555), (35, 571022), (53, 377090), (70, 285511), (106, 188545), (265, 75418), (371, 53870), (530, 37709), (742, 26935), (1855, 10774), (3710, 5387)]