2391620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1553}}^1$

素因数の和:1580

約数の個数: 48

約数和(自身を含む): 6265728

約数和(自身を除く): 3874108

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 1553, 3106, 6212, 7765, 10871, 15530, 17083, 21742, 31060, 34166, 43484, 54355, 68332, 85415, 108710, 119581, 170830, 217420, 239162, 341660, 478324, 597905, 1195810, 2391620]

約数ペア:

[(1, 2391620), (2, 1195810), (4, 597905), (5, 478324), (7, 341660), (10, 239162), (11, 217420), (14, 170830), (20, 119581), (22, 108710), (28, 85415), (35, 68332), (44, 54355), (55, 43484), (70, 34166), (77, 31060), (110, 21742), (140, 17083), (154, 15530), (220, 10871), (308, 7765), (385, 6212), (770, 3106), (1540, 1553)]