163986125

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 213857280

約数和(自身を除く): 49871155

約数列:

[1, 5, 25, 31, 101, 125, 155, 419, 505, 775, 2095, 2525, 3131, 3875, 10475, 12625, 12989, 15655, 42319, 52375, 64945, 78275, 211595, 324725, 391375, 1057975, 1311889, 1623625, 5289875, 6559445, 32797225, 163986125]

約数ペア:

[(1, 163986125), (5, 32797225), (25, 6559445), (31, 5289875), (101, 1623625), (125, 1311889), (155, 1057975), (419, 391375), (505, 324725), (775, 211595), (2095, 78275), (2525, 64945), (3131, 52375), (3875, 42319), (10475, 15655), (12625, 12989)]