81090080

素因数分解:

$2^5\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1109}}^1$

素因数の和:1581

約数の個数: 48

約数和(自身を含む): 192167640

約数和(自身を除く): 111077560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 457, 914, 1109, 1828, 2218, 2285, 3656, 4436, 4570, 5545, 7312, 8872, 9140, 11090, 14624, 17744, 18280, 22180, 35488, 36560, 44360, 73120, 88720, 177440, 506813, 1013626, 2027252, 2534065, 4054504, 5068130, 8109008, 10136260, 16218016, 20272520, 40545040, 81090080]

約数ペア:

[(1, 81090080), (2, 40545040), (4, 20272520), (5, 16218016), (8, 10136260), (10, 8109008), (16, 5068130), (20, 4054504), (32, 2534065), (40, 2027252), (80, 1013626), (160, 506813), (457, 177440), (914, 88720), (1109, 73120), (1828, 44360), (2218, 36560), (2285, 35488), (3656, 22180), (4436, 18280), (4570, 17744), (5545, 14624), (7312, 11090), (8872, 9140)]