1640392970

素因数分解:

$2^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{495587}}^1$

素因数の和:495925

約数の個数: 16

約数和(自身を含む): 2961633888

約数和(自身を除く): 1321240918

約数列:

[1, 2, 5, 10, 331, 662, 1655, 3310, 495587, 991174, 2477935, 4955870, 164039297, 328078594, 820196485, 1640392970]

約数ペア:

[(1, 1640392970), (2, 820196485), (5, 328078594), (10, 164039297), (331, 4955870), (662, 2477935), (1655, 991174), (3310, 495587)]