28497760

素因数分解:

$2^5\times 5^1\times {\mathrm{277}}^1\times {\mathrm{643}}^1$

素因数の和:935

約数の個数: 48

約数和(自身を含む): 67674096

約数和(自身を除く): 39176336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 277, 554, 643, 1108, 1286, 1385, 2216, 2572, 2770, 3215, 4432, 5144, 5540, 6430, 8864, 10288, 11080, 12860, 20576, 22160, 25720, 44320, 51440, 102880, 178111, 356222, 712444, 890555, 1424888, 1781110, 2849776, 3562220, 5699552, 7124440, 14248880, 28497760]

約数ペア:

[(1, 28497760), (2, 14248880), (4, 7124440), (5, 5699552), (8, 3562220), (10, 2849776), (16, 1781110), (20, 1424888), (32, 890555), (40, 712444), (80, 356222), (160, 178111), (277, 102880), (554, 51440), (643, 44320), (1108, 25720), (1286, 22160), (1385, 20576), (2216, 12860), (2572, 11080), (2770, 10288), (3215, 8864), (4432, 6430), (5144, 5540)]