19919144

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 45628800

約数和(自身を除く): 25709656

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 97, 133, 152, 193, 194, 266, 386, 388, 532, 679, 772, 776, 1064, 1351, 1358, 1544, 1843, 2702, 2716, 3667, 3686, 5404, 5432, 7334, 7372, 10808, 12901, 14668, 14744, 18721, 25669, 25802, 29336, 37442, 51338, 51604, 74884, 102676, 103208, 131047, 149768, 205352, 262094, 355699, 524188, 711398, 1048376, 1422796, 2489893, 2845592, 4979786, 9959572, 19919144]

約数ペア:

[(1, 19919144), (2, 9959572), (4, 4979786), (7, 2845592), (8, 2489893), (14, 1422796), (19, 1048376), (28, 711398), (38, 524188), (56, 355699), (76, 262094), (97, 205352), (133, 149768), (152, 131047), (193, 103208), (194, 102676), (266, 74884), (386, 51604), (388, 51338), (532, 37442), (679, 29336), (772, 25802), (776, 25669), (1064, 18721), (1351, 14744), (1358, 14668), (1544, 12901), (1843, 10808), (2702, 7372), (2716, 7334), (3667, 5432), (3686, 5404)]