16317640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 38491200

約数和(自身を除く): 22173560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 179, 212, 215, 265, 344, 358, 424, 430, 530, 716, 860, 895, 1060, 1432, 1720, 1790, 2120, 2279, 3580, 4558, 7160, 7697, 9116, 9487, 11395, 15394, 18232, 18974, 22790, 30788, 37948, 38485, 45580, 47435, 61576, 75896, 76970, 91160, 94870, 153940, 189740, 307880, 379480, 407941, 815882, 1631764, 2039705, 3263528, 4079410, 8158820, 16317640]

約数ペア:

[(1, 16317640), (2, 8158820), (4, 4079410), (5, 3263528), (8, 2039705), (10, 1631764), (20, 815882), (40, 407941), (43, 379480), (53, 307880), (86, 189740), (106, 153940), (172, 94870), (179, 91160), (212, 76970), (215, 75896), (265, 61576), (344, 47435), (358, 45580), (424, 38485), (430, 37948), (530, 30788), (716, 22790), (860, 18974), (895, 18232), (1060, 15394), (1432, 11395), (1720, 9487), (1790, 9116), (2120, 7697), (2279, 7160), (3580, 4558)]