8971720

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1063}}^1$

素因数の和:1285

約数の個数: 32

約数和(自身を含む): 20301120

約数和(自身を除く): 11329400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1063, 1688, 2110, 2126, 4220, 4252, 5315, 8440, 8504, 10630, 21260, 42520, 224293, 448586, 897172, 1121465, 1794344, 2242930, 4485860, 8971720]

約数ペア:

[(1, 8971720), (2, 4485860), (4, 2242930), (5, 1794344), (8, 1121465), (10, 897172), (20, 448586), (40, 224293), (211, 42520), (422, 21260), (844, 10630), (1055, 8504), (1063, 8440), (1688, 5315), (2110, 4252), (2126, 4220)]