28675720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6577}}^1$

素因数の和:6697

約数の個数: 32

約数和(自身を含む): 65122200

約数和(自身を除く): 36446480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6577, 13154, 26308, 32885, 52616, 65770, 131540, 263080, 716893, 1433786, 2867572, 3584465, 5735144, 7168930, 14337860, 28675720]

約数ペア:

[(1, 28675720), (2, 14337860), (4, 7168930), (5, 5735144), (8, 3584465), (10, 2867572), (20, 1433786), (40, 716893), (109, 263080), (218, 131540), (436, 65770), (545, 52616), (872, 32885), (1090, 26308), (2180, 13154), (4360, 6577)]