8339440

素因数分解:

$2^4\times 5^1\times {\mathrm{104243}}^1$

素因数の和:104256

約数の個数: 20

約数和(自身を含む): 19389384

約数和(自身を除く): 11049944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 104243, 208486, 416972, 521215, 833944, 1042430, 1667888, 2084860, 4169720, 8339440]

約数ペア:

[(1, 8339440), (2, 4169720), (4, 2084860), (5, 1667888), (8, 1042430), (10, 833944), (16, 521215), (20, 416972), (40, 208486), (80, 104243)]