40990280

素因数分解:

$2^3\times 5^1\times {\mathrm{1024757}}^1$

素因数の和:1024768

約数の個数: 16

約数和(自身を含む): 92228220

約数和(自身を除く): 51237940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1024757, 2049514, 4099028, 5123785, 8198056, 10247570, 20495140, 40990280]

約数ペア:

[(1, 40990280), (2, 20495140), (4, 10247570), (5, 8198056), (8, 5123785), (10, 4099028), (20, 2049514), (40, 1024757)]