20161490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{509}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 38666160

約数和(自身を除く): 18504670

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 233, 466, 509, 1018, 1165, 2330, 2545, 3961, 5090, 7922, 8653, 17306, 19805, 39610, 43265, 86530, 118597, 237194, 592985, 1185970, 2016149, 4032298, 10080745, 20161490]

約数ペア:

[(1, 20161490), (2, 10080745), (5, 4032298), (10, 2016149), (17, 1185970), (34, 592985), (85, 237194), (170, 118597), (233, 86530), (466, 43265), (509, 39610), (1018, 19805), (1165, 17306), (2330, 8653), (2545, 7922), (3961, 5090)]