20515968

素因数分解:

$2^7\times 3^2\times {\mathrm{11}}^1\times {\mathrm{1619}}^1$

素因数の和:1650

約数の個数: 96

約数和(自身を含む): 64443600

約数和(自身を除く): 43927632

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 128, 132, 144, 176, 192, 198, 264, 288, 352, 384, 396, 528, 576, 704, 792, 1056, 1152, 1408, 1584, 1619, 2112, 3168, 3238, 4224, 4857, 6336, 6476, 9714, 12672, 12952, 14571, 17809, 19428, 25904, 29142, 35618, 38856, 51808, 53427, 58284, 71236, 77712, 103616, 106854, 116568, 142472, 155424, 160281, 207232, 213708, 233136, 284944, 310848, 320562, 427416, 466272, 569888, 621696, 641124, 854832, 932544, 1139776, 1282248, 1709664, 1865088, 2279552, 2564496, 3419328, 5128992, 6838656, 10257984, 20515968]

約数ペア:

[(1, 20515968), (2, 10257984), (3, 6838656), (4, 5128992), (6, 3419328), (8, 2564496), (9, 2279552), (11, 1865088), (12, 1709664), (16, 1282248), (18, 1139776), (22, 932544), (24, 854832), (32, 641124), (33, 621696), (36, 569888), (44, 466272), (48, 427416), (64, 320562), (66, 310848), (72, 284944), (88, 233136), (96, 213708), (99, 207232), (128, 160281), (132, 155424), (144, 142472), (176, 116568), (192, 106854), (198, 103616), (264, 77712), (288, 71236), (352, 58284), (384, 53427), (396, 51808), (528, 38856), (576, 35618), (704, 29142), (792, 25904), (1056, 19428), (1152, 17809), (1408, 14571), (1584, 12952), (1619, 12672), (2112, 9714), (3168, 6476), (3238, 6336), (4224, 4857)]