19796960

素因数分解:

$2^5\times 5^1\times {\mathrm{123731}}^1$

素因数の和:123746

約数の個数: 24

約数和(自身を含む): 46770696

約数和(自身を除く): 26973736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123731, 247462, 494924, 618655, 989848, 1237310, 1979696, 2474620, 3959392, 4949240, 9898480, 19796960]

約数ペア:

[(1, 19796960), (2, 9898480), (4, 4949240), (5, 3959392), (8, 2474620), (10, 1979696), (16, 1237310), (20, 989848), (32, 618655), (40, 494924), (80, 247462), (160, 123731)]