138288940

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{64621}}^1$

素因数の和:64737

約数の個数: 24

約数和(自身を含む): 293125392

約数和(自身を除く): 154836452

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 64621, 129242, 258484, 323105, 646210, 1292420, 6914447, 13828894, 27657788, 34572235, 69144470, 138288940]

約数ペア:

[(1, 138288940), (2, 69144470), (4, 34572235), (5, 27657788), (10, 13828894), (20, 6914447), (107, 1292420), (214, 646210), (428, 323105), (535, 258484), (1070, 129242), (2140, 64621)]