131485240

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{9473}}^1$

素因数の和:9831

約数の個数: 32

約数和(自身を含む): 296725680

約数和(自身を除く): 165240440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2776, 3470, 6940, 9473, 13880, 18946, 37892, 47365, 75784, 94730, 189460, 378920, 3287131, 6574262, 13148524, 16435655, 26297048, 32871310, 65742620, 131485240]

約数ペア:

[(1, 131485240), (2, 65742620), (4, 32871310), (5, 26297048), (8, 16435655), (10, 13148524), (20, 6574262), (40, 3287131), (347, 378920), (694, 189460), (1388, 94730), (1735, 75784), (2776, 47365), (3470, 37892), (6940, 18946), (9473, 13880)]