80880290

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197269}}^1$

素因数の和:197317

約数の個数: 16

約数和(自身を含む): 149136120

約数和(自身を除く): 68255830

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 197269, 394538, 986345, 1972690, 8088029, 16176058, 40440145, 80880290]

約数ペア:

[(1, 80880290), (2, 40440145), (5, 16176058), (10, 8088029), (41, 1972690), (82, 986345), (205, 394538), (410, 197269)]