7882980

素因数分解:

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

素因数の和:293

約数の個数: 72

約数和(自身を含む): 25411008

約数和(自身を除く): 17528028

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, 1644, 1918, 2055, 2740, 2877, 3836, 4110, 4795, 5754, 8220, 9590, 11508, 14385, 18769, 19180, 28770, 37538, 56307, 57540, 75076, 93845, 112614, 131383, 187690, 225228, 262766, 281535, 375380, 394149, 525532, 563070, 656915, 788298, 1126140, 1313830, 1576596, 1970745, 2627660, 3941490, 7882980]

約数ペア:

[(1, 7882980), (2, 3941490), (3, 2627660), (4, 1970745), (5, 1576596), (6, 1313830), (7, 1126140), (10, 788298), (12, 656915), (14, 563070), (15, 525532), (20, 394149), (21, 375380), (28, 281535), (30, 262766), (35, 225228), (42, 187690), (60, 131383), (70, 112614), (84, 93845), (105, 75076), (137, 57540), (140, 56307), (210, 37538), (274, 28770), (411, 19180), (420, 18769), (548, 14385), (685, 11508), (822, 9590), (959, 8220), (1370, 5754), (1644, 4795), (1918, 4110), (2055, 3836), (2740, 2877)]