128428630

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{5867}}^1$

素因数の和:6084

約数の個数: 32

約数和(自身を含む): 253497600

約数和(自身を除く): 125068970

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 995, 1990, 2189, 4378, 5867, 10945, 11734, 21890, 29335, 58670, 64537, 129074, 322685, 645370, 1167533, 2335066, 5837665, 11675330, 12842863, 25685726, 64214315, 128428630]

約数ペア:

[(1, 128428630), (2, 64214315), (5, 25685726), (10, 12842863), (11, 11675330), (22, 5837665), (55, 2335066), (110, 1167533), (199, 645370), (398, 322685), (995, 129074), (1990, 64537), (2189, 58670), (4378, 29335), (5867, 21890), (10945, 11734)]