1320220780

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{238307}}^1$

素因数の和:238593

約数の個数: 24

約数和(自身を含む): 2782484208

約数和(自身を除く): 1462263428

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 5540, 238307, 476614, 953228, 1191535, 2383070, 4766140, 66011039, 132022078, 264044156, 330055195, 660110390, 1320220780]

約数ペア:

[(1, 1320220780), (2, 660110390), (4, 330055195), (5, 264044156), (10, 132022078), (20, 66011039), (277, 4766140), (554, 2383070), (1108, 1191535), (1385, 953228), (2770, 476614), (5540, 238307)]