20804800

素因数分解:

$2^6\times 5^2\times {\mathrm{13003}}^1$

素因数の和:13025

約数の個数: 42

約数和(自身を含む): 51196748

約数和(自身を除く): 30391948

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13003, 26006, 52012, 65015, 104024, 130030, 208048, 260060, 325075, 416096, 520120, 650150, 832192, 1040240, 1300300, 2080480, 2600600, 4160960, 5201200, 10402400, 20804800]

約数ペア:

[(1, 20804800), (2, 10402400), (4, 5201200), (5, 4160960), (8, 2600600), (10, 2080480), (16, 1300300), (20, 1040240), (25, 832192), (32, 650150), (40, 520120), (50, 416096), (64, 325075), (80, 260060), (100, 208048), (160, 130030), (200, 104024), (320, 65015), (400, 52012), (800, 26006), (1600, 13003)]