28186720

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1559}}^1$

素因数の和:1687

約数の個数: 48

約数和(自身を含む): 67223520

約数和(自身を除く): 39036800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1130, 1559, 1808, 2260, 3118, 3616, 4520, 6236, 7795, 9040, 12472, 15590, 18080, 24944, 31180, 49888, 62360, 124720, 176167, 249440, 352334, 704668, 880835, 1409336, 1761670, 2818672, 3523340, 5637344, 7046680, 14093360, 28186720]

約数ペア:

[(1, 28186720), (2, 14093360), (4, 7046680), (5, 5637344), (8, 3523340), (10, 2818672), (16, 1761670), (20, 1409336), (32, 880835), (40, 704668), (80, 352334), (113, 249440), (160, 176167), (226, 124720), (452, 62360), (565, 49888), (904, 31180), (1130, 24944), (1559, 18080), (1808, 15590), (2260, 12472), (3118, 9040), (3616, 7795), (4520, 6236)]