68667920

素因数分解:

$2^4\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1061}}^1$

素因数の和:1883

約数の個数: 40

約数和(自身を含む): 160000920

約数和(自身を除く): 91333000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809, 1061, 1618, 2122, 3236, 4045, 4244, 5305, 6472, 8090, 8488, 10610, 12944, 16180, 16976, 21220, 32360, 42440, 64720, 84880, 858349, 1716698, 3433396, 4291745, 6866792, 8583490, 13733584, 17166980, 34333960, 68667920]

約数ペア:

[(1, 68667920), (2, 34333960), (4, 17166980), (5, 13733584), (8, 8583490), (10, 6866792), (16, 4291745), (20, 3433396), (40, 1716698), (80, 858349), (809, 84880), (1061, 64720), (1618, 42440), (2122, 32360), (3236, 21220), (4045, 16976), (4244, 16180), (5305, 12944), (6472, 10610), (8090, 8488)]