212740240

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{20939}}^1$

素因数の和:21079

約数の個数: 40

約数和(自身を含む): 498539520

約数和(自身を除く): 285799280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 20939, 41878, 83756, 104695, 167512, 209390, 335024, 418780, 837560, 1675120, 2659253, 5318506, 10637012, 13296265, 21274024, 26592530, 42548048, 53185060, 106370120, 212740240]

約数ペア:

[(1, 212740240), (2, 106370120), (4, 53185060), (5, 42548048), (8, 26592530), (10, 21274024), (16, 13296265), (20, 10637012), (40, 5318506), (80, 2659253), (127, 1675120), (254, 837560), (508, 418780), (635, 335024), (1016, 209390), (1270, 167512), (2032, 104695), (2540, 83756), (5080, 41878), (10160, 20939)]