43181780

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1979}}^1$

素因数の和:3079

約数の個数: 24

約数和(自身を含む): 90810720

約数和(自身を除く): 47628940

約数列:

[1, 2, 4, 5, 10, 20, 1091, 1979, 2182, 3958, 4364, 5455, 7916, 9895, 10910, 19790, 21820, 39580, 2159089, 4318178, 8636356, 10795445, 21590890, 43181780]

約数ペア:

[(1, 43181780), (2, 21590890), (4, 10795445), (5, 8636356), (10, 4318178), (20, 2159089), (1091, 39580), (1979, 21820), (2182, 19790), (3958, 10910), (4364, 9895), (5455, 7916)]