28336040

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2521}}^1$

素因数の和:2813

約数の個数: 32

約数和(自身を含む): 64008360

約数和(自身を除く): 35672320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2521, 2810, 5042, 5620, 10084, 11240, 12605, 20168, 25210, 50420, 100840, 708401, 1416802, 2833604, 3542005, 5667208, 7084010, 14168020, 28336040]

約数ペア:

[(1, 28336040), (2, 14168020), (4, 7084010), (5, 5667208), (8, 3542005), (10, 2833604), (20, 1416802), (40, 708401), (281, 100840), (562, 50420), (1124, 25210), (1405, 20168), (2248, 12605), (2521, 11240), (2810, 10084), (5042, 5620)]