81640986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:683

約数の個数: 64

約数和(自身を含む): 197683200

約数和(自身を除く): 116042214

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 263, 266, 389, 399, 526, 778, 789, 798, 1167, 1578, 1841, 2334, 2723, 3682, 4997, 5446, 5523, 7391, 8169, 9994, 11046, 14782, 14991, 16338, 22173, 29982, 34979, 44346, 51737, 69958, 102307, 103474, 104937, 155211, 204614, 209874, 306921, 310422, 613842, 716149, 1432298, 1943833, 2148447, 3887666, 4296894, 5831499, 11662998, 13606831, 27213662, 40820493, 81640986]

約数ペア:

[(1, 81640986), (2, 40820493), (3, 27213662), (6, 13606831), (7, 11662998), (14, 5831499), (19, 4296894), (21, 3887666), (38, 2148447), (42, 1943833), (57, 1432298), (114, 716149), (133, 613842), (263, 310422), (266, 306921), (389, 209874), (399, 204614), (526, 155211), (778, 104937), (789, 103474), (798, 102307), (1167, 69958), (1578, 51737), (1841, 44346), (2334, 34979), (2723, 29982), (3682, 22173), (4997, 16338), (5446, 14991), (5523, 14782), (7391, 11046), (8169, 9994)]