345116

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 18

約数和(自身を含む): 640080

約数和(自身を除く): 294964

約数列:

[1, 2, 4, 19, 38, 76, 239, 361, 478, 722, 956, 1444, 4541, 9082, 18164, 86279, 172558, 345116]

約数ペア:

[(1, 345116), (2, 172558), (4, 86279), (19, 18164), (38, 9082), (76, 4541), (239, 1444), (361, 956), (478, 722)]