20406120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1429}}^1$

素因数の和:1467

約数の個数: 128

約数和(自身を含む): 74131200

約数和(自身を除く): 53725080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1429, 1785, 2040, 2380, 2856, 2858, 3570, 4287, 4760, 5716, 7140, 7145, 8574, 10003, 11432, 14280, 14290, 17148, 20006, 21435, 24293, 28580, 30009, 34296, 40012, 42870, 48586, 50015, 57160, 60018, 72879, 80024, 85740, 97172, 100030, 120036, 121465, 145758, 150045, 170051, 171480, 194344, 200060, 240072, 242930, 291516, 300090, 340102, 364395, 400120, 485860, 510153, 583032, 600180, 680204, 728790, 850255, 971720, 1020306, 1200360, 1360408, 1457580, 1700510, 2040612, 2550765, 2915160, 3401020, 4081224, 5101530, 6802040, 10203060, 20406120]

約数ペア:

[(1, 20406120), (2, 10203060), (3, 6802040), (4, 5101530), (5, 4081224), (6, 3401020), (7, 2915160), (8, 2550765), (10, 2040612), (12, 1700510), (14, 1457580), (15, 1360408), (17, 1200360), (20, 1020306), (21, 971720), (24, 850255), (28, 728790), (30, 680204), (34, 600180), (35, 583032), (40, 510153), (42, 485860), (51, 400120), (56, 364395), (60, 340102), (68, 300090), (70, 291516), (84, 242930), (85, 240072), (102, 200060), (105, 194344), (119, 171480), (120, 170051), (136, 150045), (140, 145758), (168, 121465), (170, 120036), (204, 100030), (210, 97172), (238, 85740), (255, 80024), (280, 72879), (340, 60018), (357, 57160), (408, 50015), (420, 48586), (476, 42870), (510, 40012), (595, 34296), (680, 30009), (714, 28580), (840, 24293), (952, 21435), (1020, 20006), (1190, 17148), (1428, 14290), (1429, 14280), (1785, 11432), (2040, 10003), (2380, 8574), (2856, 7145), (2858, 7140), (3570, 5716), (4287, 4760)]