81073860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1409}}^1$

素因数の和:1565

約数の個数: 96

約数和(自身を含む): 261515520

約数和(自身を除く): 180441660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 137, 140, 210, 274, 411, 420, 548, 685, 822, 959, 1370, 1409, 1644, 1918, 2055, 2740, 2818, 2877, 3836, 4110, 4227, 4795, 5636, 5754, 7045, 8220, 8454, 9590, 9863, 11508, 14090, 14385, 16908, 19180, 19726, 21135, 28180, 28770, 29589, 39452, 42270, 49315, 57540, 59178, 84540, 98630, 118356, 147945, 193033, 197260, 295890, 386066, 579099, 591780, 772132, 965165, 1158198, 1351231, 1930330, 2316396, 2702462, 2895495, 3860660, 4053693, 5404924, 5790990, 6756155, 8107386, 11581980, 13512310, 16214772, 20268465, 27024620, 40536930, 81073860]

約数ペア:

[(1, 81073860), (2, 40536930), (3, 27024620), (4, 20268465), (5, 16214772), (6, 13512310), (7, 11581980), (10, 8107386), (12, 6756155), (14, 5790990), (15, 5404924), (20, 4053693), (21, 3860660), (28, 2895495), (30, 2702462), (35, 2316396), (42, 1930330), (60, 1351231), (70, 1158198), (84, 965165), (105, 772132), (137, 591780), (140, 579099), (210, 386066), (274, 295890), (411, 197260), (420, 193033), (548, 147945), (685, 118356), (822, 98630), (959, 84540), (1370, 59178), (1409, 57540), (1644, 49315), (1918, 42270), (2055, 39452), (2740, 29589), (2818, 28770), (2877, 28180), (3836, 21135), (4110, 19726), (4227, 19180), (4795, 16908), (5636, 14385), (5754, 14090), (7045, 11508), (8220, 9863), (8454, 9590)]