39997688

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{161281}}^1$

素因数の和:161318

約数の個数: 16

約数和(自身を含む): 77415360

約数和(自身を除く): 37417672

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 161281, 322562, 645124, 1290248, 4999711, 9999422, 19998844, 39997688]

約数ペア:

[(1, 39997688), (2, 19998844), (4, 9999422), (8, 4999711), (31, 1290248), (62, 645124), (124, 322562), (248, 161281)]