72452840

素因数分解:

$2^3\times 5^1\times {\mathrm{1811321}}^1$

素因数の和:1811332

約数の個数: 16

約数和(自身を含む): 163018980

約数和(自身を除く): 90566140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1811321, 3622642, 7245284, 9056605, 14490568, 18113210, 36226420, 72452840]

約数ペア:

[(1, 72452840), (2, 36226420), (4, 18113210), (5, 14490568), (8, 9056605), (10, 7245284), (20, 3622642), (40, 1811321)]