171918980

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{15889}}^1$

素因数の和:16439

約数の個数: 24

約数和(自身を含む): 361719960

約数和(自身を除く): 189800980

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 10820, 15889, 31778, 63556, 79445, 158890, 317780, 8595949, 17191898, 34383796, 42979745, 85959490, 171918980]

約数ペア:

[(1, 171918980), (2, 85959490), (4, 42979745), (5, 34383796), (10, 17191898), (20, 8595949), (541, 317780), (1082, 158890), (2164, 79445), (2705, 63556), (5410, 31778), (10820, 15889)]