20495692

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 22969268

約数列:

[1, 2, 4, 7, 14, 28, 29, 43, 58, 86, 116, 172, 203, 301, 406, 587, 602, 812, 1174, 1204, 1247, 2348, 2494, 4109, 4988, 8218, 8729, 16436, 17023, 17458, 25241, 34046, 34916, 50482, 68092, 100964, 119161, 176687, 238322, 353374, 476644, 706748, 731989, 1463978, 2927956, 5123923, 10247846, 20495692]

約数ペア:

[(1, 20495692), (2, 10247846), (4, 5123923), (7, 2927956), (14, 1463978), (28, 731989), (29, 706748), (43, 476644), (58, 353374), (86, 238322), (116, 176687), (172, 119161), (203, 100964), (301, 68092), (406, 50482), (587, 34916), (602, 34046), (812, 25241), (1174, 17458), (1204, 17023), (1247, 16436), (2348, 8729), (2494, 8218), (4109, 4988)]