209400976

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{821}}^1\times {\mathrm{839}}^1$

素因数の和:1687

約数の個数: 40

約数和(自身を含む): 428097600

約数和(自身を除く): 218696624

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 821, 839, 1642, 1678, 3284, 3356, 6568, 6712, 13136, 13424, 15599, 15941, 31198, 31882, 62396, 63764, 124792, 127528, 249584, 255056, 688819, 1377638, 2755276, 5510552, 11021104, 13087561, 26175122, 52350244, 104700488, 209400976]

約数ペア:

[(1, 209400976), (2, 104700488), (4, 52350244), (8, 26175122), (16, 13087561), (19, 11021104), (38, 5510552), (76, 2755276), (152, 1377638), (304, 688819), (821, 255056), (839, 249584), (1642, 127528), (1678, 124792), (3284, 63764), (3356, 62396), (6568, 31882), (6712, 31198), (13136, 15941), (13424, 15599)]