5426920

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{643}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 12287520

約数和(自身を除く): 6860600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 643, 844, 1055, 1286, 1688, 2110, 2572, 3215, 4220, 5144, 6430, 8440, 12860, 25720, 135673, 271346, 542692, 678365, 1085384, 1356730, 2713460, 5426920]

約数ペア:

[(1, 5426920), (2, 2713460), (4, 1356730), (5, 1085384), (8, 678365), (10, 542692), (20, 271346), (40, 135673), (211, 25720), (422, 12860), (643, 8440), (844, 6430), (1055, 5144), (1286, 4220), (1688, 3215), (2110, 2572)]