290198980

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{135607}}^1$

素因数の和:135723

約数の個数: 24

約数和(自身を含む): 615117888

約数和(自身を除く): 324918908

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 135607, 271214, 542428, 678035, 1356070, 2712140, 14509949, 29019898, 58039796, 72549745, 145099490, 290198980]

約数ペア:

[(1, 290198980), (2, 145099490), (4, 72549745), (5, 58039796), (10, 29019898), (20, 14509949), (107, 2712140), (214, 1356070), (428, 678035), (535, 542428), (1070, 271214), (2140, 135607)]