388755928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{72421}}^1$

素因数の和:72499

約数の個数: 32

約数和(自身を含む): 808229520

約数和(自身を除く): 419473592

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 5368, 72421, 144842, 289684, 579368, 796631, 1593262, 3186524, 4417681, 6373048, 8835362, 17670724, 35341448, 48594491, 97188982, 194377964, 388755928]

約数ペア:

[(1, 388755928), (2, 194377964), (4, 97188982), (8, 48594491), (11, 35341448), (22, 17670724), (44, 8835362), (61, 6373048), (88, 4417681), (122, 3186524), (244, 1593262), (488, 796631), (671, 579368), (1342, 289684), (2684, 144842), (5368, 72421)]