127128920

素因数分解:

$2^3\times 5^1\times {\mathrm{3178223}}^1$

素因数の和:3178234

約数の個数: 16

約数和(自身を含む): 286040160

約数和(自身を除く): 158911240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3178223, 6356446, 12712892, 15891115, 25425784, 31782230, 63564460, 127128920]

約数ペア:

[(1, 127128920), (2, 63564460), (4, 31782230), (5, 25425784), (8, 15891115), (10, 12712892), (20, 6356446), (40, 3178223)]