28369720

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1601}}^1$

素因数の和:2055

約数の個数: 32

約数和(自身を含む): 64015920

約数和(自身を除く): 35646200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1601, 1772, 2215, 3202, 3544, 4430, 6404, 8005, 8860, 12808, 16010, 17720, 32020, 64040, 709243, 1418486, 2836972, 3546215, 5673944, 7092430, 14184860, 28369720]

約数ペア:

[(1, 28369720), (2, 14184860), (4, 7092430), (5, 5673944), (8, 3546215), (10, 2836972), (20, 1418486), (40, 709243), (443, 64040), (886, 32020), (1601, 17720), (1772, 16010), (2215, 12808), (3202, 8860), (3544, 8005), (4430, 6404)]