628085140

素因数分解:

$2^2\times 5^1\times {\mathrm{6361}}^1\times {\mathrm{4937}}^1$

素因数の和:11307

約数の個数: 24

約数和(自身を含む): 1319453352

約数和(自身を除く): 691368212

約数列:

[1, 2, 4, 5, 10, 20, 4937, 6361, 9874, 12722, 19748, 24685, 25444, 31805, 49370, 63610, 98740, 127220, 31404257, 62808514, 125617028, 157021285, 314042570, 628085140]

約数ペア:

[(1, 628085140), (2, 314042570), (4, 157021285), (5, 125617028), (10, 62808514), (20, 31404257), (4937, 127220), (6361, 98740), (9874, 63610), (12722, 49370), (19748, 31805), (24685, 25444)]