20745648

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1871}}^1$

素因数の和:1903

約数の個数: 120

約数和(自身を含む): 72423936

約数和(自身を除く): 51678288

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 33, 36, 42, 44, 48, 56, 63, 66, 72, 77, 84, 88, 99, 112, 126, 132, 144, 154, 168, 176, 198, 231, 252, 264, 308, 336, 396, 462, 504, 528, 616, 693, 792, 924, 1008, 1232, 1386, 1584, 1848, 1871, 2772, 3696, 3742, 5544, 5613, 7484, 11088, 11226, 13097, 14968, 16839, 20581, 22452, 26194, 29936, 33678, 39291, 41162, 44904, 52388, 61743, 67356, 78582, 82324, 89808, 104776, 117873, 123486, 134712, 144067, 157164, 164648, 185229, 209552, 235746, 246972, 269424, 288134, 314328, 329296, 370458, 432201, 471492, 493944, 576268, 628656, 740916, 864402, 942984, 987888, 1152536, 1296603, 1481832, 1728804, 1885968, 2305072, 2593206, 2963664, 3457608, 5186412, 6915216, 10372824, 20745648]

約数ペア:

[(1, 20745648), (2, 10372824), (3, 6915216), (4, 5186412), (6, 3457608), (7, 2963664), (8, 2593206), (9, 2305072), (11, 1885968), (12, 1728804), (14, 1481832), (16, 1296603), (18, 1152536), (21, 987888), (22, 942984), (24, 864402), (28, 740916), (33, 628656), (36, 576268), (42, 493944), (44, 471492), (48, 432201), (56, 370458), (63, 329296), (66, 314328), (72, 288134), (77, 269424), (84, 246972), (88, 235746), (99, 209552), (112, 185229), (126, 164648), (132, 157164), (144, 144067), (154, 134712), (168, 123486), (176, 117873), (198, 104776), (231, 89808), (252, 82324), (264, 78582), (308, 67356), (336, 61743), (396, 52388), (462, 44904), (504, 41162), (528, 39291), (616, 33678), (693, 29936), (792, 26194), (924, 22452), (1008, 20581), (1232, 16839), (1386, 14968), (1584, 13097), (1848, 11226), (1871, 11088), (2772, 7484), (3696, 5613), (3742, 5544)]