1780780

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{331}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 3764880

約数和(自身を除く): 1984100

約数列:

[1, 2, 4, 5, 10, 20, 269, 331, 538, 662, 1076, 1324, 1345, 1655, 2690, 3310, 5380, 6620, 89039, 178078, 356156, 445195, 890390, 1780780]

約数ペア:

[(1, 1780780), (2, 890390), (4, 445195), (5, 356156), (10, 178078), (20, 89039), (269, 6620), (331, 5380), (538, 3310), (662, 2690), (1076, 1655), (1324, 1345)]