168460090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{991}}^1$

素因数の和:1278

約数の個数: 32

約数和(自身を含む): 308551680

約数和(自身を除く): 140091590

約数列:

[1, 2, 5, 10, 89, 178, 191, 382, 445, 890, 955, 991, 1910, 1982, 4955, 9910, 16999, 33998, 84995, 88199, 169990, 176398, 189281, 378562, 440995, 881990, 946405, 1892810, 16846009, 33692018, 84230045, 168460090]

約数ペア:

[(1, 168460090), (2, 84230045), (5, 33692018), (10, 16846009), (89, 1892810), (178, 946405), (191, 881990), (382, 440995), (445, 378562), (890, 189281), (955, 176398), (991, 169990), (1910, 88199), (1982, 84995), (4955, 33998), (9910, 16999)]