209318680

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{33331}}^1$

素因数の和:33499

約数の個数: 32

約数和(自身を含む): 473981040

約数和(自身を除く): 264662360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 33331, 66662, 133324, 166655, 266648, 333310, 666620, 1333240, 5232967, 10465934, 20931868, 26164835, 41863736, 52329670, 104659340, 209318680]

約数ペア:

[(1, 209318680), (2, 104659340), (4, 52329670), (5, 41863736), (8, 26164835), (10, 20931868), (20, 10465934), (40, 5232967), (157, 1333240), (314, 666620), (628, 333310), (785, 266648), (1256, 166655), (1570, 133324), (3140, 66662), (6280, 33331)]