71497640

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{6361}}^1$

素因数の和:6653

約数の個数: 32

約数和(自身を含む): 161467560

約数和(自身を除く): 89969920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 6361, 11240, 12722, 25444, 31805, 50888, 63610, 127220, 254440, 1787441, 3574882, 7149764, 8937205, 14299528, 17874410, 35748820, 71497640]

約数ペア:

[(1, 71497640), (2, 35748820), (4, 17874410), (5, 14299528), (8, 8937205), (10, 7149764), (20, 3574882), (40, 1787441), (281, 254440), (562, 127220), (1124, 63610), (1405, 50888), (2248, 31805), (2810, 25444), (5620, 12722), (6361, 11240)]