19958512

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 47496960

約数和(自身を除く): 27538448

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 83, 112, 113, 133, 152, 166, 226, 266, 304, 332, 452, 532, 581, 664, 791, 904, 1064, 1162, 1328, 1577, 1582, 1808, 2128, 2147, 2324, 3154, 3164, 4294, 4648, 6308, 6328, 8588, 9296, 9379, 11039, 12616, 12656, 15029, 17176, 18758, 22078, 25232, 30058, 34352, 37516, 44156, 60116, 65653, 75032, 88312, 120232, 131306, 150064, 176624, 178201, 240464, 262612, 356402, 525224, 712804, 1050448, 1247407, 1425608, 2494814, 2851216, 4989628, 9979256, 19958512]

約数ペア:

[(1, 19958512), (2, 9979256), (4, 4989628), (7, 2851216), (8, 2494814), (14, 1425608), (16, 1247407), (19, 1050448), (28, 712804), (38, 525224), (56, 356402), (76, 262612), (83, 240464), (112, 178201), (113, 176624), (133, 150064), (152, 131306), (166, 120232), (226, 88312), (266, 75032), (304, 65653), (332, 60116), (452, 44156), (532, 37516), (581, 34352), (664, 30058), (791, 25232), (904, 22078), (1064, 18758), (1162, 17176), (1328, 15029), (1577, 12656), (1582, 12616), (1808, 11039), (2128, 9379), (2147, 9296), (2324, 8588), (3154, 6328), (3164, 6308), (4294, 4648)]