20743040

素因数分解:

$2^7\times 5^1\times {\mathrm{32411}}^1$

素因数の和:32430

約数の個数: 32

約数和(自身を含む): 49590360

約数和(自身を除く): 28847320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32411, 64822, 129644, 162055, 259288, 324110, 518576, 648220, 1037152, 1296440, 2074304, 2592880, 4148608, 5185760, 10371520, 20743040]

約数ペア:

[(1, 20743040), (2, 10371520), (4, 5185760), (5, 4148608), (8, 2592880), (10, 2074304), (16, 1296440), (20, 1037152), (32, 648220), (40, 518576), (64, 324110), (80, 259288), (128, 162055), (160, 129644), (320, 64822), (640, 32411)]