19901952

素因数分解:

$2^9\times 3^2\times 7^1\times {\mathrm{617}}^1$

素因数の和:648

約数の個数: 120

約数和(自身を含む): 65750256

約数和(自身を除く): 45848304

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 128, 144, 168, 192, 224, 252, 256, 288, 336, 384, 448, 504, 512, 576, 617, 672, 768, 896, 1008, 1152, 1234, 1344, 1536, 1792, 1851, 2016, 2304, 2468, 2688, 3584, 3702, 4032, 4319, 4608, 4936, 5376, 5553, 7404, 8064, 8638, 9872, 10752, 11106, 12957, 14808, 16128, 17276, 19744, 22212, 25914, 29616, 32256, 34552, 38871, 39488, 44424, 51828, 59232, 69104, 77742, 78976, 88848, 103656, 118464, 138208, 155484, 157952, 177696, 207312, 236928, 276416, 310968, 315904, 355392, 414624, 473856, 552832, 621936, 710784, 829248, 947712, 1105664, 1243872, 1421568, 1658496, 2211328, 2487744, 2843136, 3316992, 4975488, 6633984, 9950976, 19901952]

約数ペア:

[(1, 19901952), (2, 9950976), (3, 6633984), (4, 4975488), (6, 3316992), (7, 2843136), (8, 2487744), (9, 2211328), (12, 1658496), (14, 1421568), (16, 1243872), (18, 1105664), (21, 947712), (24, 829248), (28, 710784), (32, 621936), (36, 552832), (42, 473856), (48, 414624), (56, 355392), (63, 315904), (64, 310968), (72, 276416), (84, 236928), (96, 207312), (112, 177696), (126, 157952), (128, 155484), (144, 138208), (168, 118464), (192, 103656), (224, 88848), (252, 78976), (256, 77742), (288, 69104), (336, 59232), (384, 51828), (448, 44424), (504, 39488), (512, 38871), (576, 34552), (617, 32256), (672, 29616), (768, 25914), (896, 22212), (1008, 19744), (1152, 17276), (1234, 16128), (1344, 14808), (1536, 12957), (1792, 11106), (1851, 10752), (2016, 9872), (2304, 8638), (2468, 8064), (2688, 7404), (3584, 5553), (3702, 5376), (4032, 4936), (4319, 4608)]