28942760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9397}}^1$

素因数の和:9426

約数の個数: 64

約数和(自身を含む): 81198720

約数和(自身を除く): 52255960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 9397, 18794, 37588, 46985, 65779, 75176, 93970, 103367, 131558, 187940, 206734, 263116, 328895, 375880, 413468, 516835, 526232, 657790, 723569, 826936, 1033670, 1315580, 1447138, 2067340, 2631160, 2894276, 3617845, 4134680, 5788552, 7235690, 14471380, 28942760]

約数ペア:

[(1, 28942760), (2, 14471380), (4, 7235690), (5, 5788552), (7, 4134680), (8, 3617845), (10, 2894276), (11, 2631160), (14, 2067340), (20, 1447138), (22, 1315580), (28, 1033670), (35, 826936), (40, 723569), (44, 657790), (55, 526232), (56, 516835), (70, 413468), (77, 375880), (88, 328895), (110, 263116), (140, 206734), (154, 187940), (220, 131558), (280, 103367), (308, 93970), (385, 75176), (440, 65779), (616, 46985), (770, 37588), (1540, 18794), (3080, 9397)]