20668175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4421}}^1$

素因数の和:4459

約数の個数: 24

約数和(自身を含む): 29609712

約数和(自身を除く): 8941537

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4421, 4675, 22105, 48631, 75157, 110525, 243155, 375785, 826727, 1215775, 1878925, 4133635, 20668175]

約数ペア:

[(1, 20668175), (5, 4133635), (11, 1878925), (17, 1215775), (25, 826727), (55, 375785), (85, 243155), (187, 110525), (275, 75157), (425, 48631), (935, 22105), (4421, 4675)]