3991040

素因数分解:

$2^9\times 5^1\times {\mathrm{1559}}^1$

素因数の和:1582

約数の個数: 40

約数和(自身を含む): 9575280

約数和(自身を除く): 5584240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 1559, 2560, 3118, 6236, 7795, 12472, 15590, 24944, 31180, 49888, 62360, 99776, 124720, 199552, 249440, 399104, 498880, 798208, 997760, 1995520, 3991040]

約数ペア:

[(1, 3991040), (2, 1995520), (4, 997760), (5, 798208), (8, 498880), (10, 399104), (16, 249440), (20, 199552), (32, 124720), (40, 99776), (64, 62360), (80, 49888), (128, 31180), (160, 24944), (256, 15590), (320, 12472), (512, 7795), (640, 6236), (1280, 3118), (1559, 2560)]