20785856

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:158

約数の個数: 112

約数和(自身を含む): 52571904

約数和(自身を除く): 31786048

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 43, 52, 56, 64, 83, 86, 91, 104, 112, 166, 172, 182, 208, 224, 301, 332, 344, 364, 416, 448, 559, 581, 602, 664, 688, 728, 832, 1079, 1118, 1162, 1204, 1328, 1376, 1456, 2158, 2236, 2324, 2408, 2656, 2752, 2912, 3569, 3913, 4316, 4472, 4648, 4816, 5312, 5824, 7138, 7553, 7826, 8632, 8944, 9296, 9632, 14276, 15106, 15652, 17264, 17888, 18592, 19264, 24983, 28552, 30212, 31304, 34528, 35776, 37184, 46397, 49966, 57104, 60424, 62608, 69056, 92794, 99932, 114208, 120848, 125216, 185588, 199864, 228416, 241696, 250432, 324779, 371176, 399728, 483392, 649558, 742352, 799456, 1299116, 1484704, 1598912, 2598232, 2969408, 5196464, 10392928, 20785856]

約数ペア:

[(1, 20785856), (2, 10392928), (4, 5196464), (7, 2969408), (8, 2598232), (13, 1598912), (14, 1484704), (16, 1299116), (26, 799456), (28, 742352), (32, 649558), (43, 483392), (52, 399728), (56, 371176), (64, 324779), (83, 250432), (86, 241696), (91, 228416), (104, 199864), (112, 185588), (166, 125216), (172, 120848), (182, 114208), (208, 99932), (224, 92794), (301, 69056), (332, 62608), (344, 60424), (364, 57104), (416, 49966), (448, 46397), (559, 37184), (581, 35776), (602, 34528), (664, 31304), (688, 30212), (728, 28552), (832, 24983), (1079, 19264), (1118, 18592), (1162, 17888), (1204, 17264), (1328, 15652), (1376, 15106), (1456, 14276), (2158, 9632), (2236, 9296), (2324, 8944), (2408, 8632), (2656, 7826), (2752, 7553), (2912, 7138), (3569, 5824), (3913, 5312), (4316, 4816), (4472, 4648)]