199118540

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{72671}}^1$

素因数の和:72817

約数の個数: 24

約数和(自身を含む): 421206912

約数和(自身を除く): 222088372

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 72671, 145342, 290684, 363355, 726710, 1453420, 9955927, 19911854, 39823708, 49779635, 99559270, 199118540]

約数ペア:

[(1, 199118540), (2, 99559270), (4, 49779635), (5, 39823708), (10, 19911854), (20, 9955927), (137, 1453420), (274, 726710), (548, 363355), (685, 290684), (1370, 145342), (2740, 72671)]