259996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 524160

約数和(自身を除く): 264164

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 311, 418, 622, 836, 1244, 3421, 5909, 6842, 11818, 13684, 23636, 64999, 129998, 259996]

約数ペア:

[(1, 259996), (2, 129998), (4, 64999), (11, 23636), (19, 13684), (22, 11818), (38, 6842), (44, 5909), (76, 3421), (209, 1244), (311, 836), (418, 622)]