40490440

素因数分解:

$2^3\times 5^1\times {\mathrm{1012261}}^1$

素因数の和:1012272

約数の個数: 16

約数和(自身を含む): 91103580

約数和(自身を除く): 50613140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1012261, 2024522, 4049044, 5061305, 8098088, 10122610, 20245220, 40490440]

約数ペア:

[(1, 40490440), (2, 20245220), (4, 10122610), (5, 8098088), (8, 5061305), (10, 4049044), (20, 2024522), (40, 1012261)]