20180778032

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{367}}^1\times {\mathrm{881}}^1$

素因数の和:1386

約数の個数: 80

約数和(自身を含む): 40569403392

約数和(自身を除く): 20388625360

約数列:

[1, 2, 4, 8, 16, 47, 83, 94, 166, 188, 332, 367, 376, 664, 734, 752, 881, 1328, 1468, 1762, 2936, 3524, 3901, 5872, 7048, 7802, 14096, 15604, 17249, 30461, 31208, 34498, 41407, 60922, 62416, 68996, 73123, 82814, 121844, 137992, 146246, 165628, 243688, 275984, 292492, 323327, 331256, 487376, 584984, 646654, 662512, 1169968, 1293308, 1431667, 2586616, 2863334, 3436781, 5173232, 5726668, 6873562, 11453336, 13747124, 15196369, 22906672, 26836141, 27494248, 30392738, 53672282, 54988496, 60785476, 107344564, 121570952, 214689128, 243141904, 429378256, 1261298627, 2522597254, 5045194508, 10090389016, 20180778032]

約数ペア:

[(1, 20180778032), (2, 10090389016), (4, 5045194508), (8, 2522597254), (16, 1261298627), (47, 429378256), (83, 243141904), (94, 214689128), (166, 121570952), (188, 107344564), (332, 60785476), (367, 54988496), (376, 53672282), (664, 30392738), (734, 27494248), (752, 26836141), (881, 22906672), (1328, 15196369), (1468, 13747124), (1762, 11453336), (2936, 6873562), (3524, 5726668), (3901, 5173232), (5872, 3436781), (7048, 2863334), (7802, 2586616), (14096, 1431667), (15604, 1293308), (17249, 1169968), (30461, 662512), (31208, 646654), (34498, 584984), (41407, 487376), (60922, 331256), (62416, 323327), (68996, 292492), (73123, 275984), (82814, 243688), (121844, 165628), (137992, 146246)]