28313440

素因数分解:

$2^5\times 5^1\times {\mathrm{311}}^1\times {\mathrm{569}}^1$

素因数の和:895

約数の個数: 48

約数和(自身を含む): 67223520

約数和(自身を除く): 38910080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 311, 569, 622, 1138, 1244, 1555, 2276, 2488, 2845, 3110, 4552, 4976, 5690, 6220, 9104, 9952, 11380, 12440, 18208, 22760, 24880, 45520, 49760, 91040, 176959, 353918, 707836, 884795, 1415672, 1769590, 2831344, 3539180, 5662688, 7078360, 14156720, 28313440]

約数ペア:

[(1, 28313440), (2, 14156720), (4, 7078360), (5, 5662688), (8, 3539180), (10, 2831344), (16, 1769590), (20, 1415672), (32, 884795), (40, 707836), (80, 353918), (160, 176959), (311, 91040), (569, 49760), (622, 45520), (1138, 24880), (1244, 22760), (1555, 18208), (2276, 12440), (2488, 11380), (2845, 9952), (3110, 9104), (4552, 6220), (4976, 5690)]