19699520

素因数分解:

$2^6\times 5^1\times {\mathrm{61561}}^1$

素因数の和:61578

約数の個数: 28

約数和(自身を含む): 46910244

約数和(自身を除く): 27210724

約数列:

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

約数ペア:

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