20840650

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{6833}}^1$

素因数の和:6906

約数の個数: 24

約数和(自身を含む): 39404844

約数和(自身を除く): 18564194

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 6833, 13666, 34165, 68330, 170825, 341650, 416813, 833626, 2084065, 4168130, 10420325, 20840650]

約数ペア:

[(1, 20840650), (2, 10420325), (5, 4168130), (10, 2084065), (25, 833626), (50, 416813), (61, 341650), (122, 170825), (305, 68330), (610, 34165), (1525, 13666), (3050, 6833)]