18395440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 31101392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 307, 428, 535, 560, 614, 749, 856, 1070, 1228, 1498, 1535, 1712, 2140, 2149, 2456, 2996, 3070, 3745, 4280, 4298, 4912, 5992, 6140, 7490, 8560, 8596, 10745, 11984, 12280, 14980, 17192, 21490, 24560, 29960, 32849, 34384, 42980, 59920, 65698, 85960, 131396, 164245, 171920, 229943, 262792, 328490, 459886, 525584, 656980, 919772, 1149715, 1313960, 1839544, 2299430, 2627920, 3679088, 4598860, 9197720, 18395440]

約数ペア:

[(1, 18395440), (2, 9197720), (4, 4598860), (5, 3679088), (7, 2627920), (8, 2299430), (10, 1839544), (14, 1313960), (16, 1149715), (20, 919772), (28, 656980), (35, 525584), (40, 459886), (56, 328490), (70, 262792), (80, 229943), (107, 171920), (112, 164245), (140, 131396), (214, 85960), (280, 65698), (307, 59920), (428, 42980), (535, 34384), (560, 32849), (614, 29960), (749, 24560), (856, 21490), (1070, 17192), (1228, 14980), (1498, 12280), (1535, 11984), (1712, 10745), (2140, 8596), (2149, 8560), (2456, 7490), (2996, 6140), (3070, 5992), (3745, 4912), (4280, 4298)]