12726040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4481}}^1$

素因数の和:4563

約数の個数: 32

約数和(自身を含む): 29043360

約数和(自身を除く): 16317320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4481, 8962, 17924, 22405, 35848, 44810, 89620, 179240, 318151, 636302, 1272604, 1590755, 2545208, 3181510, 6363020, 12726040]

約数ペア:

[(1, 12726040), (2, 6363020), (4, 3181510), (5, 2545208), (8, 1590755), (10, 1272604), (20, 636302), (40, 318151), (71, 179240), (142, 89620), (284, 44810), (355, 35848), (568, 22405), (710, 17924), (1420, 8962), (2840, 4481)]