81561654

素因数分解:

$2^1\times 3^4\times {\mathrm{79}}^1\times {\mathrm{6373}}^1$

素因数の和:6466

約数の個数: 40

約数和(自身を含む): 185100960

約数和(自身を除く): 103539306

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 158, 162, 237, 474, 711, 1422, 2133, 4266, 6373, 6399, 12746, 12798, 19119, 38238, 57357, 114714, 172071, 344142, 503467, 516213, 1006934, 1032426, 1510401, 3020802, 4531203, 9062406, 13593609, 27187218, 40780827, 81561654]

約数ペア:

[(1, 81561654), (2, 40780827), (3, 27187218), (6, 13593609), (9, 9062406), (18, 4531203), (27, 3020802), (54, 1510401), (79, 1032426), (81, 1006934), (158, 516213), (162, 503467), (237, 344142), (474, 172071), (711, 114714), (1422, 57357), (2133, 38238), (4266, 19119), (6373, 12798), (6399, 12746)]