20377360

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1423}}^1$

素因数の和:1615

約数の個数: 40

約数和(自身を含む): 47675520

約数和(自身を除く): 27298160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1423, 1432, 1790, 2846, 2864, 3580, 5692, 7115, 7160, 11384, 14230, 14320, 22768, 28460, 56920, 113840, 254717, 509434, 1018868, 1273585, 2037736, 2547170, 4075472, 5094340, 10188680, 20377360]

約数ペア:

[(1, 20377360), (2, 10188680), (4, 5094340), (5, 4075472), (8, 2547170), (10, 2037736), (16, 1273585), (20, 1018868), (40, 509434), (80, 254717), (179, 113840), (358, 56920), (716, 28460), (895, 22768), (1423, 14320), (1432, 14230), (1790, 11384), (2846, 7160), (2864, 7115), (3580, 5692)]