81640804

素因数分解:

$2^2\times 7^1\times {\mathrm{1669}}^1\times {\mathrm{1747}}^1$

素因数の和:3427

約数の個数: 24

約数和(自身を含む): 163472960

約数和(自身を除く): 81832156

約数列:

[1, 2, 4, 7, 14, 28, 1669, 1747, 3338, 3494, 6676, 6988, 11683, 12229, 23366, 24458, 46732, 48916, 2915743, 5831486, 11662972, 20410201, 40820402, 81640804]

約数ペア:

[(1, 81640804), (2, 40820402), (4, 20410201), (7, 11662972), (14, 5831486), (28, 2915743), (1669, 48916), (1747, 46732), (3338, 24458), (3494, 23366), (6676, 12229), (6988, 11683)]