1680702939

素因数分解:

$3^7\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 2618542080

約数和(自身を除く): 937839141

約数列:

[1, 3, 9, 27, 47, 81, 83, 141, 197, 243, 249, 423, 591, 729, 747, 1269, 1773, 2187, 2241, 3807, 3901, 5319, 6723, 9259, 11421, 11703, 15957, 16351, 20169, 27777, 34263, 35109, 47871, 49053, 60507, 83331, 102789, 105327, 143613, 147159, 181521, 249993, 315981, 430839, 441477, 749979, 768497, 947943, 1324431, 2249937, 2305491, 2843829, 3973293, 6749811, 6916473, 8531487, 11919879, 20249433, 20749419, 35759637, 62248257, 186744771, 560234313, 1680702939]

約数ペア:

[(1, 1680702939), (3, 560234313), (9, 186744771), (27, 62248257), (47, 35759637), (81, 20749419), (83, 20249433), (141, 11919879), (197, 8531487), (243, 6916473), (249, 6749811), (423, 3973293), (591, 2843829), (729, 2305491), (747, 2249937), (1269, 1324431), (1773, 947943), (2187, 768497), (2241, 749979), (3807, 441477), (3901, 430839), (5319, 315981), (6723, 249993), (9259, 181521), (11421, 147159), (11703, 143613), (15957, 105327), (16351, 102789), (20169, 83331), (27777, 60507), (34263, 49053), (35109, 47871)]