20789440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9281}}^1$

素因数の和:9305

約数の個数: 56

約数和(自身を含む): 56583072

約数和(自身を除く): 35793632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9281, 18562, 37124, 46405, 64967, 74248, 92810, 129934, 148496, 185620, 259868, 296992, 324835, 371240, 519736, 593984, 649670, 742480, 1039472, 1299340, 1484960, 2078944, 2598680, 2969920, 4157888, 5197360, 10394720, 20789440]

約数ペア:

[(1, 20789440), (2, 10394720), (4, 5197360), (5, 4157888), (7, 2969920), (8, 2598680), (10, 2078944), (14, 1484960), (16, 1299340), (20, 1039472), (28, 742480), (32, 649670), (35, 593984), (40, 519736), (56, 371240), (64, 324835), (70, 296992), (80, 259868), (112, 185620), (140, 148496), (160, 129934), (224, 92810), (280, 74248), (320, 64967), (448, 46405), (560, 37124), (1120, 18562), (2240, 9281)]