19765020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29947}}^1$

素因数の和:29970

約数の個数: 48

約数和(自身を含む): 60375168

約数和(自身を除く): 40610148

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 29947, 59894, 89841, 119788, 149735, 179682, 299470, 329417, 359364, 449205, 598940, 658834, 898410, 988251, 1317668, 1647085, 1796820, 1976502, 3294170, 3953004, 4941255, 6588340, 9882510, 19765020]

約数ペア:

[(1, 19765020), (2, 9882510), (3, 6588340), (4, 4941255), (5, 3953004), (6, 3294170), (10, 1976502), (11, 1796820), (12, 1647085), (15, 1317668), (20, 988251), (22, 898410), (30, 658834), (33, 598940), (44, 449205), (55, 359364), (60, 329417), (66, 299470), (110, 179682), (132, 149735), (165, 119788), (220, 89841), (330, 59894), (660, 29947)]