219469820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{1051}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 472415328

約数和(自身を除く): 252945508

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 197, 212, 265, 394, 530, 788, 985, 1051, 1060, 1970, 2102, 3940, 4204, 5255, 10441, 10510, 20882, 21020, 41764, 52205, 55703, 104410, 111406, 207047, 208820, 222812, 278515, 414094, 557030, 828188, 1035235, 1114060, 2070470, 4140940, 10973491, 21946982, 43893964, 54867455, 109734910, 219469820]

約数ペア:

[(1, 219469820), (2, 109734910), (4, 54867455), (5, 43893964), (10, 21946982), (20, 10973491), (53, 4140940), (106, 2070470), (197, 1114060), (212, 1035235), (265, 828188), (394, 557030), (530, 414094), (788, 278515), (985, 222812), (1051, 208820), (1060, 207047), (1970, 111406), (2102, 104410), (3940, 55703), (4204, 52205), (5255, 41764), (10441, 21020), (10510, 20882)]