18008320

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1279}}^1$

素因数の和:1311

約数の個数: 72

約数和(自身を含む): 47093760

約数和(自身を除く): 29085440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1279, 1280, 1408, 1760, 2558, 2816, 3520, 5116, 6395, 7040, 10232, 12790, 14069, 14080, 20464, 25580, 28138, 40928, 51160, 56276, 70345, 81856, 102320, 112552, 140690, 163712, 204640, 225104, 281380, 327424, 409280, 450208, 562760, 818560, 900416, 1125520, 1637120, 1800832, 2251040, 3601664, 4502080, 9004160, 18008320]

約数ペア:

[(1, 18008320), (2, 9004160), (4, 4502080), (5, 3601664), (8, 2251040), (10, 1800832), (11, 1637120), (16, 1125520), (20, 900416), (22, 818560), (32, 562760), (40, 450208), (44, 409280), (55, 327424), (64, 281380), (80, 225104), (88, 204640), (110, 163712), (128, 140690), (160, 112552), (176, 102320), (220, 81856), (256, 70345), (320, 56276), (352, 51160), (440, 40928), (640, 28138), (704, 25580), (880, 20464), (1279, 14080), (1280, 14069), (1408, 12790), (1760, 10232), (2558, 7040), (2816, 6395), (3520, 5116)]