12968840

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{929}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 29295000

約数和(自身を除く): 16326160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 929, 1396, 1745, 1858, 2792, 3490, 3716, 4645, 6980, 7432, 9290, 13960, 18580, 37160, 324221, 648442, 1296884, 1621105, 2593768, 3242210, 6484420, 12968840]

約数ペア:

[(1, 12968840), (2, 6484420), (4, 3242210), (5, 2593768), (8, 1621105), (10, 1296884), (20, 648442), (40, 324221), (349, 37160), (698, 18580), (929, 13960), (1396, 9290), (1745, 7432), (1858, 6980), (2792, 4645), (3490, 3716)]