64778080

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1613}}^1$

素因数の和:1879

約数の個数: 48

約数和(自身を含む): 153743184

約数和(自身を除く): 88965104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 502, 1004, 1255, 1613, 2008, 2510, 3226, 4016, 5020, 6452, 8032, 8065, 10040, 12904, 16130, 20080, 25808, 32260, 40160, 51616, 64520, 129040, 258080, 404863, 809726, 1619452, 2024315, 3238904, 4048630, 6477808, 8097260, 12955616, 16194520, 32389040, 64778080]

約数ペア:

[(1, 64778080), (2, 32389040), (4, 16194520), (5, 12955616), (8, 8097260), (10, 6477808), (16, 4048630), (20, 3238904), (32, 2024315), (40, 1619452), (80, 809726), (160, 404863), (251, 258080), (502, 129040), (1004, 64520), (1255, 51616), (1613, 40160), (2008, 32260), (2510, 25808), (3226, 20080), (4016, 16130), (5020, 12904), (6452, 10040), (8032, 8065)]