20139225

素因数分解:

$3^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1021}}^1$

素因数の和:1297

約数の個数: 24

約数和(自身を含む): 33456192

約数和(自身を除く): 13316967

約数列:

[1, 3, 5, 15, 25, 75, 263, 789, 1021, 1315, 3063, 3945, 5105, 6575, 15315, 19725, 25525, 76575, 268523, 805569, 1342615, 4027845, 6713075, 20139225]

約数ペア:

[(1, 20139225), (3, 6713075), (5, 4027845), (15, 1342615), (25, 805569), (75, 268523), (263, 76575), (789, 25525), (1021, 19725), (1315, 15315), (3063, 6575), (3945, 5105)]