78885125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 108635904

約数和(自身を除く): 29750779

約数列:

[1, 5, 11, 25, 55, 103, 125, 275, 515, 557, 1133, 1375, 2575, 2785, 5665, 6127, 12875, 13925, 28325, 30635, 57371, 69625, 141625, 153175, 286855, 631081, 765875, 1434275, 3155405, 7171375, 15777025, 78885125]

約数ペア:

[(1, 78885125), (5, 15777025), (11, 7171375), (25, 3155405), (55, 1434275), (103, 765875), (125, 631081), (275, 286855), (515, 153175), (557, 141625), (1133, 69625), (1375, 57371), (2575, 30635), (2785, 28325), (5665, 13925), (6127, 12875)]