208400580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{385927}}^1$

素因数の和:385945

約数の個数: 48

約数和(自身を含む): 648359040

約数和(自身を除く): 439958460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 385927, 771854, 1157781, 1543708, 1929635, 2315562, 3473343, 3859270, 4631124, 5788905, 6946686, 7718540, 10420029, 11577810, 13893372, 17366715, 20840058, 23155620, 34733430, 41680116, 52100145, 69466860, 104200290, 208400580]

約数ペア:

[(1, 208400580), (2, 104200290), (3, 69466860), (4, 52100145), (5, 41680116), (6, 34733430), (9, 23155620), (10, 20840058), (12, 17366715), (15, 13893372), (18, 11577810), (20, 10420029), (27, 7718540), (30, 6946686), (36, 5788905), (45, 4631124), (54, 3859270), (60, 3473343), (90, 2315562), (108, 1929635), (135, 1543708), (180, 1157781), (270, 771854), (540, 385927)]