128305250

素因数分解:

$2^1\times 5^3\times {\mathrm{199}}^1\times {\mathrm{2579}}^1$

素因数の和:2795

約数の個数: 32

約数和(自身を含む): 241488000

約数和(自身を除く): 113182750

約数列:

[1, 2, 5, 10, 25, 50, 125, 199, 250, 398, 995, 1990, 2579, 4975, 5158, 9950, 12895, 24875, 25790, 49750, 64475, 128950, 322375, 513221, 644750, 1026442, 2566105, 5132210, 12830525, 25661050, 64152625, 128305250]

約数ペア:

[(1, 128305250), (2, 64152625), (5, 25661050), (10, 12830525), (25, 5132210), (50, 2566105), (125, 1026442), (199, 644750), (250, 513221), (398, 322375), (995, 128950), (1990, 64475), (2579, 49750), (4975, 25790), (5158, 24875), (9950, 12895)]