81548360

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{5323}}^1$

素因数の和:5717

約数の個数: 32

約数和(自身を含む): 183997440

約数和(自身を除く): 102449080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 5323, 7660, 10646, 15320, 21292, 26615, 42584, 53230, 106460, 212920, 2038709, 4077418, 8154836, 10193545, 16309672, 20387090, 40774180, 81548360]

約数ペア:

[(1, 81548360), (2, 40774180), (4, 20387090), (5, 16309672), (8, 10193545), (10, 8154836), (20, 4077418), (40, 2038709), (383, 212920), (766, 106460), (1532, 53230), (1915, 42584), (3064, 26615), (3830, 21292), (5323, 15320), (7660, 10646)]