20808157888

素因数分解:

$2^6\times 7^1\times {\mathrm{811}}^1\times {\mathrm{57271}}^1$

素因数の和:58101

約数の個数: 56

約数和(自身を含む): 47248941824

約数和(自身を除く): 26440783936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 811, 1622, 3244, 5677, 6488, 11354, 12976, 22708, 25952, 45416, 51904, 57271, 90832, 114542, 181664, 229084, 363328, 400897, 458168, 801794, 916336, 1603588, 1832672, 3207176, 3665344, 6414352, 12828704, 25657408, 46446781, 92893562, 185787124, 325127467, 371574248, 650254934, 743148496, 1300509868, 1486296992, 2601019736, 2972593984, 5202039472, 10404078944, 20808157888]

約数ペア:

[(1, 20808157888), (2, 10404078944), (4, 5202039472), (7, 2972593984), (8, 2601019736), (14, 1486296992), (16, 1300509868), (28, 743148496), (32, 650254934), (56, 371574248), (64, 325127467), (112, 185787124), (224, 92893562), (448, 46446781), (811, 25657408), (1622, 12828704), (3244, 6414352), (5677, 3665344), (6488, 3207176), (11354, 1832672), (12976, 1603588), (22708, 916336), (25952, 801794), (45416, 458168), (51904, 400897), (57271, 363328), (90832, 229084), (114542, 181664)]