71811580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{27409}}^1$

素因数の和:27549

約数の個数: 24

約数和(自身を含む): 151961040

約数和(自身を除く): 80149460

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 27409, 54818, 109636, 137045, 274090, 548180, 3590579, 7181158, 14362316, 17952895, 35905790, 71811580]

約数ペア:

[(1, 71811580), (2, 35905790), (4, 17952895), (5, 14362316), (10, 7181158), (20, 3590579), (131, 548180), (262, 274090), (524, 137045), (655, 109636), (1310, 54818), (2620, 27409)]