18187740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:233

約数の個数: 120

約数和(自身を含む): 58138080

約数和(自身を除く): 39950340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 103, 108, 109, 135, 162, 180, 206, 218, 270, 309, 324, 327, 405, 412, 436, 515, 540, 545, 618, 654, 810, 927, 981, 1030, 1090, 1236, 1308, 1545, 1620, 1635, 1854, 1962, 2060, 2180, 2781, 2943, 3090, 3270, 3708, 3924, 4635, 4905, 5562, 5886, 6180, 6540, 8343, 8829, 9270, 9810, 11124, 11227, 11772, 13905, 14715, 16686, 17658, 18540, 19620, 22454, 27810, 29430, 33372, 33681, 35316, 41715, 44145, 44908, 55620, 56135, 58860, 67362, 83430, 88290, 101043, 112270, 134724, 166860, 168405, 176580, 202086, 224540, 303129, 336810, 404172, 505215, 606258, 673620, 909387, 1010430, 1212516, 1515645, 1818774, 2020860, 3031290, 3637548, 4546935, 6062580, 9093870, 18187740]

約数ペア:

[(1, 18187740), (2, 9093870), (3, 6062580), (4, 4546935), (5, 3637548), (6, 3031290), (9, 2020860), (10, 1818774), (12, 1515645), (15, 1212516), (18, 1010430), (20, 909387), (27, 673620), (30, 606258), (36, 505215), (45, 404172), (54, 336810), (60, 303129), (81, 224540), (90, 202086), (103, 176580), (108, 168405), (109, 166860), (135, 134724), (162, 112270), (180, 101043), (206, 88290), (218, 83430), (270, 67362), (309, 58860), (324, 56135), (327, 55620), (405, 44908), (412, 44145), (436, 41715), (515, 35316), (540, 33681), (545, 33372), (618, 29430), (654, 27810), (810, 22454), (927, 19620), (981, 18540), (1030, 17658), (1090, 16686), (1236, 14715), (1308, 13905), (1545, 11772), (1620, 11227), (1635, 11124), (1854, 9810), (1962, 9270), (2060, 8829), (2180, 8343), (2781, 6540), (2943, 6180), (3090, 5886), (3270, 5562), (3708, 4905), (3924, 4635)]