12515180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^2$

素因数の和:266

約数の個数: 36

約数和(自身を含む): 26916960

約数和(自身を除く): 14401780

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 158, 178, 316, 356, 395, 445, 790, 890, 1580, 1780, 7031, 7921, 14062, 15842, 28124, 31684, 35155, 39605, 70310, 79210, 140620, 158420, 625759, 1251518, 2503036, 3128795, 6257590, 12515180]

約数ペア:

[(1, 12515180), (2, 6257590), (4, 3128795), (5, 2503036), (10, 1251518), (20, 625759), (79, 158420), (89, 140620), (158, 79210), (178, 70310), (316, 39605), (356, 35155), (395, 31684), (445, 28124), (790, 15842), (890, 14062), (1580, 7921), (1780, 7031)]