28116040

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1231}}^1$

素因数の和:1813

約数の個数: 32

約数和(自身を含む): 63423360

約数和(自身を除く): 35307320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 1231, 2284, 2462, 2855, 4568, 4924, 5710, 6155, 9848, 11420, 12310, 22840, 24620, 49240, 702901, 1405802, 2811604, 3514505, 5623208, 7029010, 14058020, 28116040]

約数ペア:

[(1, 28116040), (2, 14058020), (4, 7029010), (5, 5623208), (8, 3514505), (10, 2811604), (20, 1405802), (40, 702901), (571, 49240), (1142, 24620), (1231, 22840), (2284, 12310), (2462, 11420), (2855, 9848), (4568, 6155), (4924, 5710)]