20161931056

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1\times {\mathrm{1049}}^1$

素因数の和:1534

約数の個数: 80

約数和(自身を含む): 40652085600

約数和(自身を除く): 20490154544

約数列:

[1, 2, 4, 8, 16, 41, 82, 83, 164, 166, 328, 332, 353, 656, 664, 706, 1049, 1328, 1412, 2098, 2824, 3403, 4196, 5648, 6806, 8392, 13612, 14473, 16784, 27224, 28946, 29299, 43009, 54448, 57892, 58598, 86018, 87067, 115784, 117196, 172036, 174134, 231568, 234392, 344072, 348268, 370297, 468784, 688144, 696536, 740594, 1201259, 1393072, 1481188, 2402518, 2962376, 3569747, 4805036, 5924752, 7139494, 9610072, 14278988, 15182177, 19220144, 28557976, 30364354, 30734651, 57115952, 60728708, 61469302, 121457416, 122938604, 242914832, 245877208, 491754416, 1260120691, 2520241382, 5040482764, 10080965528, 20161931056]

約数ペア:

[(1, 20161931056), (2, 10080965528), (4, 5040482764), (8, 2520241382), (16, 1260120691), (41, 491754416), (82, 245877208), (83, 242914832), (164, 122938604), (166, 121457416), (328, 61469302), (332, 60728708), (353, 57115952), (656, 30734651), (664, 30364354), (706, 28557976), (1049, 19220144), (1328, 15182177), (1412, 14278988), (2098, 9610072), (2824, 7139494), (3403, 5924752), (4196, 4805036), (5648, 3569747), (6806, 2962376), (8392, 2402518), (13612, 1481188), (14473, 1393072), (16784, 1201259), (27224, 740594), (28946, 696536), (29299, 688144), (43009, 468784), (54448, 370297), (57892, 348268), (58598, 344072), (86018, 234392), (87067, 231568), (115784, 174134), (117196, 172036)]