194540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 417312

約数和(自身を除く): 222772

約数列:

[1, 2, 4, 5, 10, 20, 71, 137, 142, 274, 284, 355, 548, 685, 710, 1370, 1420, 2740, 9727, 19454, 38908, 48635, 97270, 194540]

約数ペア:

[(1, 194540), (2, 97270), (4, 48635), (5, 38908), (10, 19454), (20, 9727), (71, 2740), (137, 1420), (142, 1370), (274, 710), (284, 685), (355, 548)]