128438520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1429}}^1$

素因数の和:1557

約数の個数: 128

約数和(自身を含む): 444787200

約数和(自身を除く): 316348680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 107, 120, 140, 168, 210, 214, 280, 321, 420, 428, 535, 642, 749, 840, 856, 1070, 1284, 1429, 1498, 1605, 2140, 2247, 2568, 2858, 2996, 3210, 3745, 4280, 4287, 4494, 5716, 5992, 6420, 7145, 7490, 8574, 8988, 10003, 11235, 11432, 12840, 14290, 14980, 17148, 17976, 20006, 21435, 22470, 28580, 29960, 30009, 34296, 40012, 42870, 44940, 50015, 57160, 60018, 80024, 85740, 89880, 100030, 120036, 150045, 152903, 171480, 200060, 240072, 300090, 305806, 400120, 458709, 600180, 611612, 764515, 917418, 1070321, 1200360, 1223224, 1529030, 1834836, 2140642, 2293545, 3058060, 3210963, 3669672, 4281284, 4587090, 5351605, 6116120, 6421926, 8562568, 9174180, 10703210, 12843852, 16054815, 18348360, 21406420, 25687704, 32109630, 42812840, 64219260, 128438520]

約数ペア:

[(1, 128438520), (2, 64219260), (3, 42812840), (4, 32109630), (5, 25687704), (6, 21406420), (7, 18348360), (8, 16054815), (10, 12843852), (12, 10703210), (14, 9174180), (15, 8562568), (20, 6421926), (21, 6116120), (24, 5351605), (28, 4587090), (30, 4281284), (35, 3669672), (40, 3210963), (42, 3058060), (56, 2293545), (60, 2140642), (70, 1834836), (84, 1529030), (105, 1223224), (107, 1200360), (120, 1070321), (140, 917418), (168, 764515), (210, 611612), (214, 600180), (280, 458709), (321, 400120), (420, 305806), (428, 300090), (535, 240072), (642, 200060), (749, 171480), (840, 152903), (856, 150045), (1070, 120036), (1284, 100030), (1429, 89880), (1498, 85740), (1605, 80024), (2140, 60018), (2247, 57160), (2568, 50015), (2858, 44940), (2996, 42870), (3210, 40012), (3745, 34296), (4280, 30009), (4287, 29960), (4494, 28580), (5716, 22470), (5992, 21435), (6420, 20006), (7145, 17976), (7490, 17148), (8574, 14980), (8988, 14290), (10003, 12840), (11235, 11432)]