81323260

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{60689}}^1$

素因数の和:60765

約数の個数: 24

約数和(自身を含む): 173330640

約数和(自身を除く): 92007380

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 60689, 121378, 242756, 303445, 606890, 1213780, 4066163, 8132326, 16264652, 20330815, 40661630, 81323260]

約数ペア:

[(1, 81323260), (2, 40661630), (4, 20330815), (5, 16264652), (10, 8132326), (20, 4066163), (67, 1213780), (134, 606890), (268, 303445), (335, 242756), (670, 121378), (1340, 60689)]