645316

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1243

約数の個数: 24

約数和(自身を含む): 1359680

約数和(自身を除く): 714364

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 1213, 2426, 4852, 8491, 16982, 23047, 33964, 46094, 92188, 161329, 322658, 645316]

約数ペア:

[(1, 645316), (2, 322658), (4, 161329), (7, 92188), (14, 46094), (19, 33964), (28, 23047), (38, 16982), (76, 8491), (133, 4852), (266, 2426), (532, 1213)]