11725180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 25683840

約数和(自身を除く): 13958660

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 181, 205, 316, 362, 395, 410, 724, 790, 820, 905, 1580, 1810, 3239, 3620, 6478, 7421, 12956, 14299, 14842, 16195, 28598, 29684, 32390, 37105, 57196, 64780, 71495, 74210, 142990, 148420, 285980, 586259, 1172518, 2345036, 2931295, 5862590, 11725180]

約数ペア:

[(1, 11725180), (2, 5862590), (4, 2931295), (5, 2345036), (10, 1172518), (20, 586259), (41, 285980), (79, 148420), (82, 142990), (158, 74210), (164, 71495), (181, 64780), (205, 57196), (316, 37105), (362, 32390), (395, 29684), (410, 28598), (724, 16195), (790, 14842), (820, 14299), (905, 12956), (1580, 7421), (1810, 6478), (3239, 3620)]