157315640

素因数分解:

$2^3\times 5^1\times {\mathrm{947}}^1\times {\mathrm{4153}}^1$

素因数の和:5111

約数の個数: 32

約数和(自身を含む): 354419280

約数和(自身を除く): 197103640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 947, 1894, 3788, 4153, 4735, 7576, 8306, 9470, 16612, 18940, 20765, 33224, 37880, 41530, 83060, 166120, 3932891, 7865782, 15731564, 19664455, 31463128, 39328910, 78657820, 157315640]

約数ペア:

[(1, 157315640), (2, 78657820), (4, 39328910), (5, 31463128), (8, 19664455), (10, 15731564), (20, 7865782), (40, 3932891), (947, 166120), (1894, 83060), (3788, 41530), (4153, 37880), (4735, 33224), (7576, 20765), (8306, 18940), (9470, 16612)]