18911480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 53654400

約数和(自身を除く): 34742920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 29, 34, 35, 40, 56, 58, 68, 70, 85, 116, 119, 136, 137, 140, 145, 170, 203, 232, 238, 274, 280, 290, 340, 406, 476, 493, 548, 580, 595, 680, 685, 812, 952, 959, 986, 1015, 1096, 1160, 1190, 1370, 1624, 1918, 1972, 2030, 2329, 2380, 2465, 2740, 3451, 3836, 3944, 3973, 4060, 4658, 4760, 4795, 4930, 5480, 6902, 7672, 7946, 8120, 9316, 9590, 9860, 11645, 13804, 15892, 16303, 17255, 18632, 19180, 19720, 19865, 23290, 27608, 27811, 31784, 32606, 34510, 38360, 39730, 46580, 55622, 65212, 67541, 69020, 79460, 81515, 93160, 111244, 130424, 135082, 138040, 139055, 158920, 163030, 222488, 270164, 278110, 326060, 337705, 472787, 540328, 556220, 652120, 675410, 945574, 1112440, 1350820, 1891148, 2363935, 2701640, 3782296, 4727870, 9455740, 18911480]

約数ペア:

[(1, 18911480), (2, 9455740), (4, 4727870), (5, 3782296), (7, 2701640), (8, 2363935), (10, 1891148), (14, 1350820), (17, 1112440), (20, 945574), (28, 675410), (29, 652120), (34, 556220), (35, 540328), (40, 472787), (56, 337705), (58, 326060), (68, 278110), (70, 270164), (85, 222488), (116, 163030), (119, 158920), (136, 139055), (137, 138040), (140, 135082), (145, 130424), (170, 111244), (203, 93160), (232, 81515), (238, 79460), (274, 69020), (280, 67541), (290, 65212), (340, 55622), (406, 46580), (476, 39730), (493, 38360), (548, 34510), (580, 32606), (595, 31784), (680, 27811), (685, 27608), (812, 23290), (952, 19865), (959, 19720), (986, 19180), (1015, 18632), (1096, 17255), (1160, 16303), (1190, 15892), (1370, 13804), (1624, 11645), (1918, 9860), (1972, 9590), (2030, 9316), (2329, 8120), (2380, 7946), (2465, 7672), (2740, 6902), (3451, 5480), (3836, 4930), (3944, 4795), (3973, 4760), (4060, 4658)]