20722800

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{2467}}^1$

素因数の和:2495

約数の個数: 120

約数和(自身を含む): 75895936

約数和(自身を除く): 55173136

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2467, 2800, 4200, 4934, 7401, 8400, 9868, 12335, 14802, 17269, 19736, 24670, 29604, 34538, 37005, 39472, 49340, 51807, 59208, 61675, 69076, 74010, 86345, 98680, 103614, 118416, 123350, 138152, 148020, 172690, 185025, 197360, 207228, 246700, 259035, 276304, 296040, 345380, 370050, 414456, 431725, 493400, 518070, 592080, 690760, 740100, 828912, 863450, 986800, 1036140, 1295175, 1381520, 1480200, 1726900, 2072280, 2590350, 2960400, 3453800, 4144560, 5180700, 6907600, 10361400, 20722800]

約数ペア:

[(1, 20722800), (2, 10361400), (3, 6907600), (4, 5180700), (5, 4144560), (6, 3453800), (7, 2960400), (8, 2590350), (10, 2072280), (12, 1726900), (14, 1480200), (15, 1381520), (16, 1295175), (20, 1036140), (21, 986800), (24, 863450), (25, 828912), (28, 740100), (30, 690760), (35, 592080), (40, 518070), (42, 493400), (48, 431725), (50, 414456), (56, 370050), (60, 345380), (70, 296040), (75, 276304), (80, 259035), (84, 246700), (100, 207228), (105, 197360), (112, 185025), (120, 172690), (140, 148020), (150, 138152), (168, 123350), (175, 118416), (200, 103614), (210, 98680), (240, 86345), (280, 74010), (300, 69076), (336, 61675), (350, 59208), (400, 51807), (420, 49340), (525, 39472), (560, 37005), (600, 34538), (700, 29604), (840, 24670), (1050, 19736), (1200, 17269), (1400, 14802), (1680, 12335), (2100, 9868), (2467, 8400), (2800, 7401), (4200, 4934)]