1640342259

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{196613}}^1$

素因数の和:196728

約数の個数: 20

約数和(自身を含む): 2474190576

約数和(自身を除く): 833848317

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2781, 8343, 196613, 589839, 1769517, 5308551, 15925653, 20251139, 60753417, 182260251, 546780753, 1640342259]

約数ペア:

[(1, 1640342259), (3, 546780753), (9, 182260251), (27, 60753417), (81, 20251139), (103, 15925653), (309, 5308551), (927, 1769517), (2781, 589839), (8343, 196613)]