20423168

素因数分解:

$2^9\times {\mathrm{113}}^1\times {\mathrm{353}}^1$

素因数の和:484

約数の個数: 40

約数和(自身を含む): 41284188

約数和(自身を除く): 20861020

約数列:

[1, 2, 4, 8, 16, 32, 64, 113, 128, 226, 256, 353, 452, 512, 706, 904, 1412, 1808, 2824, 3616, 5648, 7232, 11296, 14464, 22592, 28928, 39889, 45184, 57856, 79778, 90368, 159556, 180736, 319112, 638224, 1276448, 2552896, 5105792, 10211584, 20423168]

約数ペア:

[(1, 20423168), (2, 10211584), (4, 5105792), (8, 2552896), (16, 1276448), (32, 638224), (64, 319112), (113, 180736), (128, 159556), (226, 90368), (256, 79778), (353, 57856), (452, 45184), (512, 39889), (706, 28928), (904, 22592), (1412, 14464), (1808, 11296), (2824, 7232), (3616, 5648)]