19747392208

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1\times {\mathrm{1423}}^1$

素因数の和:1880

約数の個数: 80

約数和(自身を含む): 40683110400

約数和(自身を除く): 20935718192

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 191, 239, 304, 382, 478, 764, 956, 1423, 1528, 1912, 2846, 3056, 3629, 3824, 4541, 5692, 7258, 9082, 11384, 14516, 18164, 22768, 27037, 29032, 36328, 45649, 54074, 58064, 72656, 91298, 108148, 182596, 216296, 271793, 340097, 365192, 432592, 543586, 680194, 730384, 867331, 1087172, 1360388, 1734662, 2174344, 2720776, 3469324, 4348688, 5164067, 5441552, 6461843, 6938648, 10328134, 12923686, 13877296, 20656268, 25847372, 41312536, 51694744, 64958527, 82625072, 103389488, 129917054, 259834108, 519668216, 1039336432, 1234212013, 2468424026, 4936848052, 9873696104, 19747392208]

約数ペア:

[(1, 19747392208), (2, 9873696104), (4, 4936848052), (8, 2468424026), (16, 1234212013), (19, 1039336432), (38, 519668216), (76, 259834108), (152, 129917054), (191, 103389488), (239, 82625072), (304, 64958527), (382, 51694744), (478, 41312536), (764, 25847372), (956, 20656268), (1423, 13877296), (1528, 12923686), (1912, 10328134), (2846, 6938648), (3056, 6461843), (3629, 5441552), (3824, 5164067), (4541, 4348688), (5692, 3469324), (7258, 2720776), (9082, 2174344), (11384, 1734662), (14516, 1360388), (18164, 1087172), (22768, 867331), (27037, 730384), (29032, 680194), (36328, 543586), (45649, 432592), (54074, 365192), (58064, 340097), (72656, 271793), (91298, 216296), (108148, 182596)]