127710380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{912217}}^1$

素因数の和:912233

約数の個数: 24

約数和(自身を含む): 306505248

約数和(自身を除く): 178794868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 912217, 1824434, 3648868, 4561085, 6385519, 9122170, 12771038, 18244340, 25542076, 31927595, 63855190, 127710380]

約数ペア:

[(1, 127710380), (2, 63855190), (4, 31927595), (5, 25542076), (7, 18244340), (10, 12771038), (14, 9122170), (20, 6385519), (28, 4561085), (35, 3648868), (70, 1824434), (140, 912217)]