68122980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19919}}^1$

素因数の和:19953

約数の個数: 72

約数和(自身を含む): 217526400

約数和(自身を除く): 149403420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 19919, 39838, 59757, 79676, 99595, 119514, 179271, 199190, 239028, 298785, 358542, 378461, 398380, 597570, 717084, 756922, 896355, 1135383, 1195140, 1513844, 1792710, 1892305, 2270766, 3406149, 3585420, 3784610, 4541532, 5676915, 6812298, 7569220, 11353830, 13624596, 17030745, 22707660, 34061490, 68122980]

約数ペア:

[(1, 68122980), (2, 34061490), (3, 22707660), (4, 17030745), (5, 13624596), (6, 11353830), (9, 7569220), (10, 6812298), (12, 5676915), (15, 4541532), (18, 3784610), (19, 3585420), (20, 3406149), (30, 2270766), (36, 1892305), (38, 1792710), (45, 1513844), (57, 1195140), (60, 1135383), (76, 896355), (90, 756922), (95, 717084), (114, 597570), (171, 398380), (180, 378461), (190, 358542), (228, 298785), (285, 239028), (342, 199190), (380, 179271), (570, 119514), (684, 99595), (855, 79676), (1140, 59757), (1710, 39838), (3420, 19919)]