20951650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{157}}^2$

素因数の和:343

約数の個数: 36

約数和(自身を含む): 41526918

約数和(自身を除く): 20575268

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 157, 170, 314, 425, 785, 850, 1570, 2669, 3925, 5338, 7850, 13345, 24649, 26690, 49298, 66725, 123245, 133450, 246490, 419033, 616225, 838066, 1232450, 2095165, 4190330, 10475825, 20951650]

約数ペア:

[(1, 20951650), (2, 10475825), (5, 4190330), (10, 2095165), (17, 1232450), (25, 838066), (34, 616225), (50, 419033), (85, 246490), (157, 133450), (170, 123245), (314, 66725), (425, 49298), (785, 26690), (850, 24649), (1570, 13345), (2669, 7850), (3925, 5338)]