80805680

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6779}}^1$

素因数の和:6941

約数の個数: 40

約数和(自身を含む): 189162000

約数和(自身を除く): 108356320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 6779, 11920, 13558, 27116, 33895, 54232, 67790, 108464, 135580, 271160, 542320, 1010071, 2020142, 4040284, 5050355, 8080568, 10100710, 16161136, 20201420, 40402840, 80805680]

約数ペア:

[(1, 80805680), (2, 40402840), (4, 20201420), (5, 16161136), (8, 10100710), (10, 8080568), (16, 5050355), (20, 4040284), (40, 2020142), (80, 1010071), (149, 542320), (298, 271160), (596, 135580), (745, 108464), (1192, 67790), (1490, 54232), (2384, 33895), (2980, 27116), (5960, 13558), (6779, 11920)]