381657340

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139291}}^1$

素因数の和:139437

約数の個数: 24

約数和(自身を含む): 807336432

約数和(自身を除く): 425679092

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 139291, 278582, 557164, 696455, 1392910, 2785820, 19082867, 38165734, 76331468, 95414335, 190828670, 381657340]

約数ペア:

[(1, 381657340), (2, 190828670), (4, 95414335), (5, 76331468), (10, 38165734), (20, 19082867), (137, 2785820), (274, 1392910), (548, 696455), (685, 557164), (1370, 278582), (2740, 139291)]