28875560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{367}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 74718720

約数和(自身を除く): 45843160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 367, 562, 734, 1124, 1405, 1468, 1835, 1967, 2248, 2569, 2810, 2936, 3670, 3934, 5138, 5620, 7340, 7868, 9835, 10276, 11240, 12845, 14680, 15736, 19670, 20552, 25690, 39340, 51380, 78680, 102760, 103127, 206254, 412508, 515635, 721889, 825016, 1031270, 1443778, 2062540, 2887556, 3609445, 4125080, 5775112, 7218890, 14437780, 28875560]

約数ペア:

[(1, 28875560), (2, 14437780), (4, 7218890), (5, 5775112), (7, 4125080), (8, 3609445), (10, 2887556), (14, 2062540), (20, 1443778), (28, 1031270), (35, 825016), (40, 721889), (56, 515635), (70, 412508), (140, 206254), (280, 103127), (281, 102760), (367, 78680), (562, 51380), (734, 39340), (1124, 25690), (1405, 20552), (1468, 19670), (1835, 15736), (1967, 14680), (2248, 12845), (2569, 11240), (2810, 10276), (2936, 9835), (3670, 7868), (3934, 7340), (5138, 5620)]