20121193640

素因数分解:

$2^3\times 5^1\times {\mathrm{503029841}}^1$

素因数の和:503029852

約数の個数: 16

約数和(自身を含む): 45272685780

約数和(自身を除く): 25151492140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503029841, 1006059682, 2012119364, 2515149205, 4024238728, 5030298410, 10060596820, 20121193640]

約数ペア:

[(1, 20121193640), (2, 10060596820), (4, 5030298410), (5, 4024238728), (8, 2515149205), (10, 2012119364), (20, 1006059682), (40, 503029841)]