66571580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{25409}}^1$

素因数の和:25549

約数の個数: 24

約数和(自身を含む): 140873040

約数和(自身を除く): 74301460

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 25409, 50818, 101636, 127045, 254090, 508180, 3328579, 6657158, 13314316, 16642895, 33285790, 66571580]

約数ペア:

[(1, 66571580), (2, 33285790), (4, 16642895), (5, 13314316), (10, 6657158), (20, 3328579), (131, 508180), (262, 254090), (524, 127045), (655, 101636), (1310, 50818), (2620, 25409)]