280755839

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{613}}^1\times {\mathrm{719}}^1$

素因数の和:1359

約数の個数: 24

約数和(自身を含む): 352779840

約数和(自身を除く): 72024001

約数列:

[1, 7, 13, 49, 91, 613, 637, 719, 4291, 5033, 7969, 9347, 30037, 35231, 55783, 65429, 390481, 440747, 458003, 3085229, 5729711, 21596603, 40107977, 280755839]

約数ペア:

[(1, 280755839), (7, 40107977), (13, 21596603), (49, 5729711), (91, 3085229), (613, 458003), (637, 440747), (719, 390481), (4291, 65429), (5033, 55783), (7969, 35231), (9347, 30037)]