128526940

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^2\times {\mathrm{683}}^1$

素因数の和:886

約数の個数: 36

約数和(自身を含む): 273117096

約数和(自身を除く): 144590156

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 683, 970, 1366, 1940, 2732, 3415, 6830, 9409, 13660, 18818, 37636, 47045, 66251, 94090, 132502, 188180, 265004, 331255, 662510, 1325020, 6426347, 12852694, 25705388, 32131735, 64263470, 128526940]

約数ペア:

[(1, 128526940), (2, 64263470), (4, 32131735), (5, 25705388), (10, 12852694), (20, 6426347), (97, 1325020), (194, 662510), (388, 331255), (485, 265004), (683, 188180), (970, 132502), (1366, 94090), (1940, 66251), (2732, 47045), (3415, 37636), (6830, 18818), (9409, 13660)]