20126680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71881}}^1$

素因数の和:71899

約数の個数: 32

約数和(自身を含む): 51755040

約数和(自身を除く): 31628360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71881, 143762, 287524, 359405, 503167, 575048, 718810, 1006334, 1437620, 2012668, 2515835, 2875240, 4025336, 5031670, 10063340, 20126680]

約数ペア:

[(1, 20126680), (2, 10063340), (4, 5031670), (5, 4025336), (7, 2875240), (8, 2515835), (10, 2012668), (14, 1437620), (20, 1006334), (28, 718810), (35, 575048), (40, 503167), (56, 359405), (70, 287524), (140, 143762), (280, 71881)]