227984180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1\times {\mathrm{487}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 486984960

約数和(自身を除く): 259000780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 263, 356, 445, 487, 526, 890, 974, 1052, 1315, 1780, 1948, 2435, 2630, 4870, 5260, 9740, 23407, 43343, 46814, 86686, 93628, 117035, 128081, 173372, 216715, 234070, 256162, 433430, 468140, 512324, 640405, 866860, 1280810, 2561620, 11399209, 22798418, 45596836, 56996045, 113992090, 227984180]

約数ペア:

[(1, 227984180), (2, 113992090), (4, 56996045), (5, 45596836), (10, 22798418), (20, 11399209), (89, 2561620), (178, 1280810), (263, 866860), (356, 640405), (445, 512324), (487, 468140), (526, 433430), (890, 256162), (974, 234070), (1052, 216715), (1315, 173372), (1780, 128081), (1948, 117035), (2435, 93628), (2630, 86686), (4870, 46814), (5260, 43343), (9740, 23407)]