81012516

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{929}}^1$

素因数の和:1005

約数の個数: 72

約数和(自身を含む): 209674080

約数和(自身を除く): 128661564

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 169, 172, 258, 338, 507, 516, 559, 676, 929, 1014, 1118, 1677, 1858, 2028, 2236, 2787, 3354, 3716, 5574, 6708, 7267, 11148, 12077, 14534, 21801, 24154, 29068, 36231, 39947, 43602, 48308, 72462, 79894, 87204, 119841, 144924, 157001, 159788, 239682, 314002, 471003, 479364, 519311, 628004, 942006, 1038622, 1557933, 1884012, 2077244, 3115866, 6231732, 6751043, 13502086, 20253129, 27004172, 40506258, 81012516]

約数ペア:

[(1, 81012516), (2, 40506258), (3, 27004172), (4, 20253129), (6, 13502086), (12, 6751043), (13, 6231732), (26, 3115866), (39, 2077244), (43, 1884012), (52, 1557933), (78, 1038622), (86, 942006), (129, 628004), (156, 519311), (169, 479364), (172, 471003), (258, 314002), (338, 239682), (507, 159788), (516, 157001), (559, 144924), (676, 119841), (929, 87204), (1014, 79894), (1118, 72462), (1677, 48308), (1858, 43602), (2028, 39947), (2236, 36231), (2787, 29068), (3354, 24154), (3716, 21801), (5574, 14534), (6708, 12077), (7267, 11148)]