39399040

素因数分解:

$2^7\times 5^1\times {\mathrm{61561}}^1$

素因数の和:61580

約数の個数: 32

約数和(自身を含む): 94189860

約数和(自身を除く): 54790820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 61561, 123122, 246244, 307805, 492488, 615610, 984976, 1231220, 1969952, 2462440, 3939904, 4924880, 7879808, 9849760, 19699520, 39399040]

約数ペア:

[(1, 39399040), (2, 19699520), (4, 9849760), (5, 7879808), (8, 4924880), (10, 3939904), (16, 2462440), (20, 1969952), (32, 1231220), (40, 984976), (64, 615610), (80, 492488), (128, 307805), (160, 246244), (320, 123122), (640, 61561)]