347980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 741888

約数和(自身を除く): 393908

約数列:

[1, 2, 4, 5, 10, 20, 127, 137, 254, 274, 508, 548, 635, 685, 1270, 1370, 2540, 2740, 17399, 34798, 69596, 86995, 173990, 347980]

約数ペア:

[(1, 347980), (2, 173990), (4, 86995), (5, 69596), (10, 34798), (20, 17399), (127, 2740), (137, 2540), (254, 1370), (274, 1270), (508, 685), (548, 635)]