578140

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 1228752

約数和(自身を除く): 650612

約数列:

[1, 2, 4, 5, 10, 20, 137, 211, 274, 422, 548, 685, 844, 1055, 1370, 2110, 2740, 4220, 28907, 57814, 115628, 144535, 289070, 578140]

約数ペア:

[(1, 578140), (2, 289070), (4, 144535), (5, 115628), (10, 57814), (20, 28907), (137, 4220), (211, 2740), (274, 2110), (422, 1370), (548, 1055), (685, 844)]