8990920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4241}}^1$

素因数の和:4305

約数の個数: 32

約数和(自身を含む): 20616120

約数和(自身を除く): 11625200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 4241, 8482, 16964, 21205, 33928, 42410, 84820, 169640, 224773, 449546, 899092, 1123865, 1798184, 2247730, 4495460, 8990920]

約数ペア:

[(1, 8990920), (2, 4495460), (4, 2247730), (5, 1798184), (8, 1123865), (10, 899092), (20, 449546), (40, 224773), (53, 169640), (106, 84820), (212, 42410), (265, 33928), (424, 21205), (530, 16964), (1060, 8482), (2120, 4241)]