81271440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112877}}^1$

素因数の和:112896

約数の個数: 60

約数和(自身を含む): 272939004

約数和(自身を除く): 191667564

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112877, 225754, 338631, 451508, 564385, 677262, 903016, 1015893, 1128770, 1354524, 1693155, 1806032, 2031786, 2257540, 2709048, 3386310, 4063572, 4515080, 5079465, 5418096, 6772620, 8127144, 9030160, 10158930, 13545240, 16254288, 20317860, 27090480, 40635720, 81271440]

約数ペア:

[(1, 81271440), (2, 40635720), (3, 27090480), (4, 20317860), (5, 16254288), (6, 13545240), (8, 10158930), (9, 9030160), (10, 8127144), (12, 6772620), (15, 5418096), (16, 5079465), (18, 4515080), (20, 4063572), (24, 3386310), (30, 2709048), (36, 2257540), (40, 2031786), (45, 1806032), (48, 1693155), (60, 1354524), (72, 1128770), (80, 1015893), (90, 903016), (120, 677262), (144, 564385), (180, 451508), (240, 338631), (360, 225754), (720, 112877)]