1640802970

素因数分解:

$2^1\times 5^1\times {\mathrm{10477}}^1\times {\mathrm{15661}}^1$

素因数の和:26145

約数の個数: 16

約数和(自身を含む): 2953915848

約数和(自身を除く): 1313112878

約数列:

[1, 2, 5, 10, 10477, 15661, 20954, 31322, 52385, 78305, 104770, 156610, 164080297, 328160594, 820401485, 1640802970]

約数ペア:

[(1, 1640802970), (2, 820401485), (5, 328160594), (10, 164080297), (10477, 156610), (15661, 104770), (20954, 78305), (31322, 52385)]