191915020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20287}}^1$

素因数の和:20350

約数の個数: 48

約数和(自身を含む): 449906688

約数和(自身を除く): 257991668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 20287, 40574, 81148, 101435, 202870, 223157, 405740, 446314, 872341, 892628, 1115785, 1744682, 2231570, 3489364, 4361705, 4463140, 8723410, 9595751, 17446820, 19191502, 38383004, 47978755, 95957510, 191915020]

約数ペア:

[(1, 191915020), (2, 95957510), (4, 47978755), (5, 38383004), (10, 19191502), (11, 17446820), (20, 9595751), (22, 8723410), (43, 4463140), (44, 4361705), (55, 3489364), (86, 2231570), (110, 1744682), (172, 1115785), (215, 892628), (220, 872341), (430, 446314), (473, 405740), (860, 223157), (946, 202870), (1892, 101435), (2365, 81148), (4730, 40574), (9460, 20287)]