3994880

素因数分解:

$2^8\times 5^1\times {\mathrm{3121}}^1$

素因数の和:3142

約数の個数: 36

約数和(自身を含む): 9572052

約数和(自身を除く): 5577172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 3121, 6242, 12484, 15605, 24968, 31210, 49936, 62420, 99872, 124840, 199744, 249680, 399488, 499360, 798976, 998720, 1997440, 3994880]

約数ペア:

[(1, 3994880), (2, 1997440), (4, 998720), (5, 798976), (8, 499360), (10, 399488), (16, 249680), (20, 199744), (32, 124840), (40, 99872), (64, 62420), (80, 49936), (128, 31210), (160, 24968), (256, 15605), (320, 12484), (640, 6242), (1280, 3121)]