639426828

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{795307}}^1$

素因数の和:795381

約数の個数: 24

約数和(自身を含む): 1514266432

約数和(自身を除く): 874839604

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804, 795307, 1590614, 2385921, 3181228, 4771842, 9543684, 53285569, 106571138, 159856707, 213142276, 319713414, 639426828]

約数ペア:

[(1, 639426828), (2, 319713414), (3, 213142276), (4, 159856707), (6, 106571138), (12, 53285569), (67, 9543684), (134, 4771842), (201, 3181228), (268, 2385921), (402, 1590614), (804, 795307)]