640206

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{5081}}^1$

素因数の和:5096

約数の個数: 24

約数和(自身を含む): 1585584

約数和(自身を除く): 945378

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 5081, 10162, 15243, 30486, 35567, 45729, 71134, 91458, 106701, 213402, 320103, 640206]

約数ペア:

[(1, 640206), (2, 320103), (3, 213402), (6, 106701), (7, 91458), (9, 71134), (14, 45729), (18, 35567), (21, 30486), (42, 15243), (63, 10162), (126, 5081)]