20171455900

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1013641}}^1$

素因数の和:1013854

約数の個数: 36

約数和(自身を含む): 43992062800

約数和(自身を除く): 23820606900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 1990, 3980, 4975, 9950, 19900, 1013641, 2027282, 4054564, 5068205, 10136410, 20272820, 25341025, 50682050, 101364100, 201714559, 403429118, 806858236, 1008572795, 2017145590, 4034291180, 5042863975, 10085727950, 20171455900]

約数ペア:

[(1, 20171455900), (2, 10085727950), (4, 5042863975), (5, 4034291180), (10, 2017145590), (20, 1008572795), (25, 806858236), (50, 403429118), (100, 201714559), (199, 101364100), (398, 50682050), (796, 25341025), (995, 20272820), (1990, 10136410), (3980, 5068205), (4975, 4054564), (9950, 2027282), (19900, 1013641)]