20080690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 42550272

約数和(自身を除く): 22469582

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 107, 214, 245, 383, 490, 535, 749, 766, 1070, 1498, 1915, 2681, 3745, 3830, 5243, 5362, 7490, 10486, 13405, 18767, 26215, 26810, 37534, 40981, 52430, 81962, 93835, 187670, 204905, 286867, 409810, 573734, 1434335, 2008069, 2868670, 4016138, 10040345, 20080690]

約数ペア:

[(1, 20080690), (2, 10040345), (5, 4016138), (7, 2868670), (10, 2008069), (14, 1434335), (35, 573734), (49, 409810), (70, 286867), (98, 204905), (107, 187670), (214, 93835), (245, 81962), (383, 52430), (490, 40981), (535, 37534), (749, 26810), (766, 26215), (1070, 18767), (1498, 13405), (1915, 10486), (2681, 7490), (3745, 5362), (3830, 5243)]