19496540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2963}}^1$

素因数の和:3026

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 28306852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2963, 3290, 5926, 6580, 11852, 14815, 20741, 29630, 41482, 59260, 82964, 103705, 139261, 207410, 278522, 414820, 557044, 696305, 974827, 1392610, 1949654, 2785220, 3899308, 4874135, 9748270, 19496540]

約数ペア:

[(1, 19496540), (2, 9748270), (4, 4874135), (5, 3899308), (7, 2785220), (10, 1949654), (14, 1392610), (20, 974827), (28, 696305), (35, 557044), (47, 414820), (70, 278522), (94, 207410), (140, 139261), (188, 103705), (235, 82964), (329, 59260), (470, 41482), (658, 29630), (940, 20741), (1316, 14815), (1645, 11852), (2963, 6580), (3290, 5926)]