20507925

素因数分解:

$3^1\times 5^2\times {\mathrm{271}}^1\times {\mathrm{1009}}^1$

素因数の和:1293

約数の個数: 24

約数和(自身を含む): 34065280

約数和(自身を除く): 13557355

約数列:

[1, 3, 5, 15, 25, 75, 271, 813, 1009, 1355, 3027, 4065, 5045, 6775, 15135, 20325, 25225, 75675, 273439, 820317, 1367195, 4101585, 6835975, 20507925]

約数ペア:

[(1, 20507925), (3, 6835975), (5, 4101585), (15, 1367195), (25, 820317), (75, 273439), (271, 75675), (813, 25225), (1009, 20325), (1355, 15135), (3027, 6775), (4065, 5045)]