245320420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{89533}}^1$

素因数の和:89679

約数の個数: 24

約数和(自身を含む): 518939064

約数和(自身を除く): 273618644

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 89533, 179066, 358132, 447665, 895330, 1790660, 12266021, 24532042, 49064084, 61330105, 122660210, 245320420]

約数ペア:

[(1, 245320420), (2, 122660210), (4, 61330105), (5, 49064084), (10, 24532042), (20, 12266021), (137, 1790660), (274, 895330), (548, 447665), (685, 358132), (1370, 179066), (2740, 89533)]