28505560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16573}}^1$

素因数の和:16627

約数の個数: 32

約数和(自身を含む): 65633040

約数和(自身を除く): 37127480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16573, 33146, 66292, 82865, 132584, 165730, 331460, 662920, 712639, 1425278, 2850556, 3563195, 5701112, 7126390, 14252780, 28505560]

約数ペア:

[(1, 28505560), (2, 14252780), (4, 7126390), (5, 5701112), (8, 3563195), (10, 2850556), (20, 1425278), (40, 712639), (43, 662920), (86, 331460), (172, 165730), (215, 132584), (344, 82865), (430, 66292), (860, 33146), (1720, 16573)]