20187241520

素因数分解:

$2^4\times 5^1\times {\mathrm{3361}}^1\times {\mathrm{75079}}^1$

素因数の和:78453

約数の個数: 40

約数和(自身を含む): 46949926560

約数和(自身を除く): 26762685040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3361, 6722, 13444, 16805, 26888, 33610, 53776, 67220, 75079, 134440, 150158, 268880, 300316, 375395, 600632, 750790, 1201264, 1501580, 3003160, 6006320, 252340519, 504681038, 1009362076, 1261702595, 2018724152, 2523405190, 4037448304, 5046810380, 10093620760, 20187241520]

約数ペア:

[(1, 20187241520), (2, 10093620760), (4, 5046810380), (5, 4037448304), (8, 2523405190), (10, 2018724152), (16, 1261702595), (20, 1009362076), (40, 504681038), (80, 252340519), (3361, 6006320), (6722, 3003160), (13444, 1501580), (16805, 1201264), (26888, 750790), (33610, 600632), (53776, 375395), (67220, 300316), (75079, 268880), (134440, 150158)]