1995520

素因数分解:

$2^8\times 5^1\times {\mathrm{1559}}^1$

素因数の和:1580

約数の個数: 36

約数和(自身を含む): 4782960

約数和(自身を除く): 2787440

約数列:

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

約数ペア:

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