889491640

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{78577}}^1$

素因数の和:78871

約数の個数: 32

約数和(自身を含む): 2008453680

約数和(自身を除く): 1118962040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 78577, 157154, 314308, 392885, 628616, 785770, 1571540, 3143080, 22237291, 44474582, 88949164, 111186455, 177898328, 222372910, 444745820, 889491640]

約数ペア:

[(1, 889491640), (2, 444745820), (4, 222372910), (5, 177898328), (8, 111186455), (10, 88949164), (20, 44474582), (40, 22237291), (283, 3143080), (566, 1571540), (1132, 785770), (1415, 628616), (2264, 392885), (2830, 314308), (5660, 157154), (11320, 78577)]