20199289520

素因数分解:

$2^4\times 5^1\times {\mathrm{252491119}}^1$

素因数の和:252491132

約数の個数: 20

約数和(自身を含む): 46963348320

約数和(自身を除く): 26764058800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252491119, 504982238, 1009964476, 1262455595, 2019928952, 2524911190, 4039857904, 5049822380, 10099644760, 20199289520]

約数ペア:

[(1, 20199289520), (2, 10099644760), (4, 5049822380), (5, 4039857904), (8, 2524911190), (10, 2019928952), (16, 1262455595), (20, 1009964476), (40, 504982238), (80, 252491119)]