129057740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{921841}}^1$

素因数の和:921857

約数の個数: 24

約数和(自身を含む): 309738912

約数和(自身を除く): 180681172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 921841, 1843682, 3687364, 4609205, 6452887, 9218410, 12905774, 18436820, 25811548, 32264435, 64528870, 129057740]

約数ペア:

[(1, 129057740), (2, 64528870), (4, 32264435), (5, 25811548), (7, 18436820), (10, 12905774), (14, 9218410), (20, 6452887), (28, 4609205), (35, 3687364), (70, 1843682), (140, 921841)]