40036840

素因数分解:

$2^3\times 5^1\times {\mathrm{1000921}}^1$

素因数の和:1000932

約数の個数: 16

約数和(自身を含む): 90082980

約数和(自身を除く): 50046140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1000921, 2001842, 4003684, 5004605, 8007368, 10009210, 20018420, 40036840]

約数ペア:

[(1, 40036840), (2, 20018420), (4, 10009210), (5, 8007368), (8, 5004605), (10, 4003684), (20, 2001842), (40, 1000921)]