39481780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11681}}^1$

素因数の和:11716

約数の個数: 36

約数和(自身を含む): 89787852

約数和(自身を除く): 50306072

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 11681, 23362, 46724, 58405, 116810, 151853, 233620, 303706, 607412, 759265, 1518530, 1974089, 3037060, 3948178, 7896356, 9870445, 19740890, 39481780]

約数ペア:

[(1, 39481780), (2, 19740890), (4, 9870445), (5, 7896356), (10, 3948178), (13, 3037060), (20, 1974089), (26, 1518530), (52, 759265), (65, 607412), (130, 303706), (169, 233620), (260, 151853), (338, 116810), (676, 58405), (845, 46724), (1690, 23362), (3380, 11681)]