80281700

素因数分解:

$2^2\times 5^2\times {\mathrm{281}}^1\times {\mathrm{2857}}^1$

素因数の和:3152

約数の個数: 36

約数和(自身を含む): 174892452

約数和(自身を除く): 94610752

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 281, 562, 1124, 1405, 2810, 2857, 5620, 5714, 7025, 11428, 14050, 14285, 28100, 28570, 57140, 71425, 142850, 285700, 802817, 1605634, 3211268, 4014085, 8028170, 16056340, 20070425, 40140850, 80281700]

約数ペア:

[(1, 80281700), (2, 40140850), (4, 20070425), (5, 16056340), (10, 8028170), (20, 4014085), (25, 3211268), (50, 1605634), (100, 802817), (281, 285700), (562, 142850), (1124, 71425), (1405, 57140), (2810, 28570), (2857, 28100), (5620, 14285), (5714, 14050), (7025, 11428)]