18635120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 50139648

約数和(自身を除く): 31504528

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 311, 428, 535, 560, 622, 749, 856, 1070, 1244, 1498, 1555, 1712, 2140, 2177, 2488, 2996, 3110, 3745, 4280, 4354, 4976, 5992, 6220, 7490, 8560, 8708, 10885, 11984, 12440, 14980, 17416, 21770, 24880, 29960, 33277, 34832, 43540, 59920, 66554, 87080, 133108, 166385, 174160, 232939, 266216, 332770, 465878, 532432, 665540, 931756, 1164695, 1331080, 1863512, 2329390, 2662160, 3727024, 4658780, 9317560, 18635120]

約数ペア:

[(1, 18635120), (2, 9317560), (4, 4658780), (5, 3727024), (7, 2662160), (8, 2329390), (10, 1863512), (14, 1331080), (16, 1164695), (20, 931756), (28, 665540), (35, 532432), (40, 465878), (56, 332770), (70, 266216), (80, 232939), (107, 174160), (112, 166385), (140, 133108), (214, 87080), (280, 66554), (311, 59920), (428, 43540), (535, 34832), (560, 33277), (622, 29960), (749, 24880), (856, 21770), (1070, 17416), (1244, 14980), (1498, 12440), (1555, 11984), (1712, 10885), (2140, 8708), (2177, 8560), (2488, 7490), (2996, 6220), (3110, 5992), (3745, 4976), (4280, 4354)]