640937982

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{5622263}}^1$

素因数の和:5622287

約数の個数: 16

約数和(自身を含む): 1349343360

約数和(自身を除く): 708405378

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 5622263, 11244526, 16866789, 33733578, 106822997, 213645994, 320468991, 640937982]

約数ペア:

[(1, 640937982), (2, 320468991), (3, 213645994), (6, 106822997), (19, 33733578), (38, 16866789), (57, 11244526), (114, 5622263)]