31560440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{14887}}^1$

素因数の和:14951

約数の個数: 32

約数和(自身を含む): 72355680

約数和(自身を除く): 40795240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 14887, 29774, 59548, 74435, 119096, 148870, 297740, 595480, 789011, 1578022, 3156044, 3945055, 6312088, 7890110, 15780220, 31560440]

約数ペア:

[(1, 31560440), (2, 15780220), (4, 7890110), (5, 6312088), (8, 3945055), (10, 3156044), (20, 1578022), (40, 789011), (53, 595480), (106, 297740), (212, 148870), (265, 119096), (424, 74435), (530, 59548), (1060, 29774), (2120, 14887)]