81809316

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^2\times {\mathrm{809}}^1$

素因数の和:925

約数の個数: 54

約数和(自身を含む): 211031730

約数和(自身を除く): 129222414

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 809, 954, 1618, 1908, 2427, 2809, 3236, 4854, 5618, 7281, 8427, 9708, 11236, 14562, 16854, 25281, 29124, 33708, 42877, 50562, 85754, 101124, 128631, 171508, 257262, 385893, 514524, 771786, 1543572, 2272481, 4544962, 6817443, 9089924, 13634886, 20452329, 27269772, 40904658, 81809316]

約数ペア:

[(1, 81809316), (2, 40904658), (3, 27269772), (4, 20452329), (6, 13634886), (9, 9089924), (12, 6817443), (18, 4544962), (36, 2272481), (53, 1543572), (106, 771786), (159, 514524), (212, 385893), (318, 257262), (477, 171508), (636, 128631), (809, 101124), (954, 85754), (1618, 50562), (1908, 42877), (2427, 33708), (2809, 29124), (3236, 25281), (4854, 16854), (5618, 14562), (7281, 11236), (8427, 9708)]