19403120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1297}}^1$

素因数の和:1338

約数の個数: 80

約数和(自身を含む): 52148448

約数和(自身を除く): 32745328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1297, 1360, 1496, 1870, 2594, 2992, 3740, 5188, 6485, 7480, 10376, 12970, 14267, 14960, 20752, 22049, 25940, 28534, 44098, 51880, 57068, 71335, 88196, 103760, 110245, 114136, 142670, 176392, 220490, 228272, 242539, 285340, 352784, 440980, 485078, 570680, 881960, 970156, 1141360, 1212695, 1763920, 1940312, 2425390, 3880624, 4850780, 9701560, 19403120]

約数ペア:

[(1, 19403120), (2, 9701560), (4, 4850780), (5, 3880624), (8, 2425390), (10, 1940312), (11, 1763920), (16, 1212695), (17, 1141360), (20, 970156), (22, 881960), (34, 570680), (40, 485078), (44, 440980), (55, 352784), (68, 285340), (80, 242539), (85, 228272), (88, 220490), (110, 176392), (136, 142670), (170, 114136), (176, 110245), (187, 103760), (220, 88196), (272, 71335), (340, 57068), (374, 51880), (440, 44098), (680, 28534), (748, 25940), (880, 22049), (935, 20752), (1297, 14960), (1360, 14267), (1496, 12970), (1870, 10376), (2594, 7480), (2992, 6485), (3740, 5188)]