20404176

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1721}}^1$

素因数の和:1764

約数の個数: 80

約数和(自身を含む): 59787840

約数和(自身を除く): 39383664

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 76, 78, 104, 114, 152, 156, 208, 228, 247, 304, 312, 456, 494, 624, 741, 912, 988, 1482, 1721, 1976, 2964, 3442, 3952, 5163, 5928, 6884, 10326, 11856, 13768, 20652, 22373, 27536, 32699, 41304, 44746, 65398, 67119, 82608, 89492, 98097, 130796, 134238, 178984, 196194, 261592, 268476, 357968, 392388, 425087, 523184, 536952, 784776, 850174, 1073904, 1275261, 1569552, 1700348, 2550522, 3400696, 5101044, 6801392, 10202088, 20404176]

約数ペア:

[(1, 20404176), (2, 10202088), (3, 6801392), (4, 5101044), (6, 3400696), (8, 2550522), (12, 1700348), (13, 1569552), (16, 1275261), (19, 1073904), (24, 850174), (26, 784776), (38, 536952), (39, 523184), (48, 425087), (52, 392388), (57, 357968), (76, 268476), (78, 261592), (104, 196194), (114, 178984), (152, 134238), (156, 130796), (208, 98097), (228, 89492), (247, 82608), (304, 67119), (312, 65398), (456, 44746), (494, 41304), (624, 32699), (741, 27536), (912, 22373), (988, 20652), (1482, 13768), (1721, 11856), (1976, 10326), (2964, 6884), (3442, 5928), (3952, 5163)]