13742840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4349}}^1$

素因数の和:4439

約数の個数: 32

約数和(自身を含む): 31320000

約数和(自身を除く): 17577160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 4349, 8698, 17396, 21745, 34792, 43490, 86980, 173960, 343571, 687142, 1374284, 1717855, 2748568, 3435710, 6871420, 13742840]

約数ペア:

[(1, 13742840), (2, 6871420), (4, 3435710), (5, 2748568), (8, 1717855), (10, 1374284), (20, 687142), (40, 343571), (79, 173960), (158, 86980), (316, 43490), (395, 34792), (632, 21745), (790, 17396), (1580, 8698), (3160, 4349)]