40020805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1861}}^1$

素因数の和:1917

約数の個数: 32

約数和(自身を含む): 57915648

約数和(自身を除く): 17894843

約数列:

[1, 5, 11, 17, 23, 55, 85, 115, 187, 253, 391, 935, 1265, 1861, 1955, 4301, 9305, 20471, 21505, 31637, 42803, 102355, 158185, 214015, 348007, 470833, 727651, 1740035, 2354165, 3638255, 8004161, 40020805]

約数ペア:

[(1, 40020805), (5, 8004161), (11, 3638255), (17, 2354165), (23, 1740035), (55, 727651), (85, 470833), (115, 348007), (187, 214015), (253, 158185), (391, 102355), (935, 42803), (1265, 31637), (1861, 21505), (1955, 20471), (4301, 9305)]