28142120

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2803}}^1$

素因数の和:3065

約数の個数: 32

約数和(自身を含む): 63594720

約数和(自身を除く): 35452600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 2803, 5020, 5606, 10040, 11212, 14015, 22424, 28030, 56060, 112120, 703553, 1407106, 2814212, 3517765, 5628424, 7035530, 14071060, 28142120]

約数ペア:

[(1, 28142120), (2, 14071060), (4, 7035530), (5, 5628424), (8, 3517765), (10, 2814212), (20, 1407106), (40, 703553), (251, 112120), (502, 56060), (1004, 28030), (1255, 22424), (2008, 14015), (2510, 11212), (2803, 10040), (5020, 5606)]