1715672720

素因数分解:

$2^4\times 5^1\times {\mathrm{21445909}}^1$

素因数の和:21445922

約数の個数: 20

約数和(自身を含む): 3988939260

約数和(自身を除く): 2273266540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21445909, 42891818, 85783636, 107229545, 171567272, 214459090, 343134544, 428918180, 857836360, 1715672720]

約数ペア:

[(1, 1715672720), (2, 857836360), (4, 428918180), (5, 343134544), (8, 214459090), (10, 171567272), (16, 107229545), (20, 85783636), (40, 42891818), (80, 21445909)]