978531125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{4211}}^1$

素因数の和:4263

約数の個数: 48

約数和(自身を含む): 1442930112

約数和(自身を除く): 464398987

約数列:

[1, 5, 11, 13, 25, 55, 65, 125, 143, 169, 275, 325, 715, 845, 1375, 1625, 1859, 3575, 4211, 4225, 9295, 17875, 21055, 21125, 46321, 46475, 54743, 105275, 231605, 232375, 273715, 526375, 602173, 711659, 1158025, 1368575, 3010865, 3558295, 5790125, 6842875, 7828249, 15054325, 17791475, 39141245, 75271625, 88957375, 195706225, 978531125]

約数ペア:

[(1, 978531125), (5, 195706225), (11, 88957375), (13, 75271625), (25, 39141245), (55, 17791475), (65, 15054325), (125, 7828249), (143, 6842875), (169, 5790125), (275, 3558295), (325, 3010865), (715, 1368575), (845, 1158025), (1375, 711659), (1625, 602173), (1859, 526375), (3575, 273715), (4211, 232375), (4225, 231605), (9295, 105275), (17875, 54743), (21055, 46475), (21125, 46321)]