28061440

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1993}}^1$

素因数の和:2025

約数の個数: 72

約数和(自身を含む): 73363248

約数和(自身を除く): 45301808

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, 1280, 1408, 1760, 1993, 2816, 3520, 3986, 7040, 7972, 9965, 14080, 15944, 19930, 21923, 31888, 39860, 43846, 63776, 79720, 87692, 109615, 127552, 159440, 175384, 219230, 255104, 318880, 350768, 438460, 510208, 637760, 701536, 876920, 1275520, 1403072, 1753840, 2551040, 2806144, 3507680, 5612288, 7015360, 14030720, 28061440]

約数ペア:

[(1, 28061440), (2, 14030720), (4, 7015360), (5, 5612288), (8, 3507680), (10, 2806144), (11, 2551040), (16, 1753840), (20, 1403072), (22, 1275520), (32, 876920), (40, 701536), (44, 637760), (55, 510208), (64, 438460), (80, 350768), (88, 318880), (110, 255104), (128, 219230), (160, 175384), (176, 159440), (220, 127552), (256, 109615), (320, 87692), (352, 79720), (440, 63776), (640, 43846), (704, 39860), (880, 31888), (1280, 21923), (1408, 19930), (1760, 15944), (1993, 14080), (2816, 9965), (3520, 7972), (3986, 7040)]