30385720

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4391}}^1$

素因数の和:4575

約数の個数: 32

約数和(自身を含む): 68778720

約数和(自身を除く): 38393000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 4391, 6920, 8782, 17564, 21955, 35128, 43910, 87820, 175640, 759643, 1519286, 3038572, 3798215, 6077144, 7596430, 15192860, 30385720]

約数ペア:

[(1, 30385720), (2, 15192860), (4, 7596430), (5, 6077144), (8, 3798215), (10, 3038572), (20, 1519286), (40, 759643), (173, 175640), (346, 87820), (692, 43910), (865, 35128), (1384, 21955), (1730, 17564), (3460, 8782), (4391, 6920)]