129205940

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{66601}}^1$

素因数の和:66707

約数の個数: 24

約数和(自身を含む): 274133832

約数和(自身を除く): 144927892

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 66601, 133202, 266404, 333005, 666010, 1332020, 6460297, 12920594, 25841188, 32301485, 64602970, 129205940]

約数ペア:

[(1, 129205940), (2, 64602970), (4, 32301485), (5, 25841188), (10, 12920594), (20, 6460297), (97, 1332020), (194, 666010), (388, 333005), (485, 266404), (970, 133202), (1940, 66601)]