212147375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{557}}^1$

素因数の和:860

約数の個数: 32

約数和(自身を含む): 290392128

約数和(自身を除く): 78244753

約数列:

[1, 5, 11, 25, 55, 125, 275, 277, 557, 1375, 1385, 2785, 3047, 6127, 6925, 13925, 15235, 30635, 34625, 69625, 76175, 153175, 154289, 380875, 765875, 771445, 1697179, 3857225, 8485895, 19286125, 42429475, 212147375]

約数ペア:

[(1, 212147375), (5, 42429475), (11, 19286125), (25, 8485895), (55, 3857225), (125, 1697179), (275, 771445), (277, 765875), (557, 380875), (1375, 154289), (1385, 153175), (2785, 76175), (3047, 69625), (6127, 34625), (6925, 30635), (13925, 15235)]