18705232

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1$

素因数の和:500

約数の個数: 80

約数和(自身を含む): 46247040

約数和(自身を除く): 27541808

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 29, 52, 56, 58, 91, 104, 112, 116, 182, 203, 208, 232, 364, 377, 406, 443, 464, 728, 754, 812, 886, 1456, 1508, 1624, 1772, 2639, 3016, 3101, 3248, 3544, 5278, 5759, 6032, 6202, 7088, 10556, 11518, 12404, 12847, 21112, 23036, 24808, 25694, 40313, 42224, 46072, 49616, 51388, 80626, 89929, 92144, 102776, 161252, 167011, 179858, 205552, 322504, 334022, 359716, 645008, 668044, 719432, 1169077, 1336088, 1438864, 2338154, 2672176, 4676308, 9352616, 18705232]

約数ペア:

[(1, 18705232), (2, 9352616), (4, 4676308), (7, 2672176), (8, 2338154), (13, 1438864), (14, 1336088), (16, 1169077), (26, 719432), (28, 668044), (29, 645008), (52, 359716), (56, 334022), (58, 322504), (91, 205552), (104, 179858), (112, 167011), (116, 161252), (182, 102776), (203, 92144), (208, 89929), (232, 80626), (364, 51388), (377, 49616), (406, 46072), (443, 42224), (464, 40313), (728, 25694), (754, 24808), (812, 23036), (886, 21112), (1456, 12847), (1508, 12404), (1624, 11518), (1772, 10556), (2639, 7088), (3016, 6202), (3101, 6032), (3248, 5759), (3544, 5278)]