1395156980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9965407}}^1$

素因数の和:9965423

約数の個数: 24

約数和(自身を含む): 3348377088

約数和(自身を除く): 1953220108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9965407, 19930814, 39861628, 49827035, 69757849, 99654070, 139515698, 199308140, 279031396, 348789245, 697578490, 1395156980]

約数ペア:

[(1, 1395156980), (2, 697578490), (4, 348789245), (5, 279031396), (7, 199308140), (10, 139515698), (14, 99654070), (20, 69757849), (28, 49827035), (35, 39861628), (70, 19930814), (140, 9965407)]