20416768

素因数分解:

$2^8\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:650

約数の個数: 36

約数和(自身を含む): 41078268

約数和(自身を除く): 20661500

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 173, 256, 346, 461, 692, 922, 1384, 1844, 2768, 3688, 5536, 7376, 11072, 14752, 22144, 29504, 44288, 59008, 79753, 118016, 159506, 319012, 638024, 1276048, 2552096, 5104192, 10208384, 20416768]

約数ペア:

[(1, 20416768), (2, 10208384), (4, 5104192), (8, 2552096), (16, 1276048), (32, 638024), (64, 319012), (128, 159506), (173, 118016), (256, 79753), (346, 59008), (461, 44288), (692, 29504), (922, 22144), (1384, 14752), (1844, 11072), (2768, 7376), (3688, 5536)]