519220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2019

約数の個数: 24

約数和(自身を含む): 1174824

約数和(自身を除く): 655604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1997, 3994, 7988, 9985, 19970, 25961, 39940, 51922, 103844, 129805, 259610, 519220]

約数ペア:

[(1, 519220), (2, 259610), (4, 129805), (5, 103844), (10, 51922), (13, 39940), (20, 25961), (26, 19970), (52, 9985), (65, 7988), (130, 3994), (260, 1997)]