516620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2009

約数の個数: 24

約数和(自身を含む): 1168944

約数和(自身を除く): 652324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1987, 3974, 7948, 9935, 19870, 25831, 39740, 51662, 103324, 129155, 258310, 516620]

約数ペア:

[(1, 516620), (2, 258310), (4, 129155), (5, 103324), (10, 51662), (13, 39740), (20, 25831), (26, 19870), (52, 9935), (65, 7948), (130, 3974), (260, 1987)]