664866490

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1\times {\mathrm{1039}}^1$

素因数の和:1854

約数の個数: 32

約数和(自身を含む): 1213056000

約数和(自身を除く): 548189510

約数列:

[1, 2, 5, 10, 89, 178, 445, 719, 890, 1039, 1438, 2078, 3595, 5195, 7190, 10390, 63991, 92471, 127982, 184942, 319955, 462355, 639910, 747041, 924710, 1494082, 3735205, 7470410, 66486649, 132973298, 332433245, 664866490]

約数ペア:

[(1, 664866490), (2, 332433245), (5, 132973298), (10, 66486649), (89, 7470410), (178, 3735205), (445, 1494082), (719, 924710), (890, 747041), (1039, 639910), (1438, 462355), (2078, 319955), (3595, 184942), (5195, 127982), (7190, 92471), (10390, 63991)]