1640288518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{390359}}^1$

素因数の和:390563

約数の個数: 16

約数和(自身を含む): 2698168320

約数和(自身を除く): 1057879802

約数列:

[1, 2, 11, 22, 191, 382, 2101, 4202, 390359, 780718, 4293949, 8587898, 74558569, 149117138, 820144259, 1640288518]

約数ペア:

[(1, 1640288518), (2, 820144259), (11, 149117138), (22, 74558569), (191, 8587898), (382, 4293949), (2101, 780718), (4202, 390359)]