20489370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2141}}^1$

素因数の和:2191

約数の個数: 64

約数和(自身を含む): 55520640

約数和(自身を除く): 35031270

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 29, 30, 33, 55, 58, 66, 87, 110, 145, 165, 174, 290, 319, 330, 435, 638, 870, 957, 1595, 1914, 2141, 3190, 4282, 4785, 6423, 9570, 10705, 12846, 21410, 23551, 32115, 47102, 62089, 64230, 70653, 117755, 124178, 141306, 186267, 235510, 310445, 353265, 372534, 620890, 682979, 706530, 931335, 1365958, 1862670, 2048937, 3414895, 4097874, 6829790, 10244685, 20489370]

約数ペア:

[(1, 20489370), (2, 10244685), (3, 6829790), (5, 4097874), (6, 3414895), (10, 2048937), (11, 1862670), (15, 1365958), (22, 931335), (29, 706530), (30, 682979), (33, 620890), (55, 372534), (58, 353265), (66, 310445), (87, 235510), (110, 186267), (145, 141306), (165, 124178), (174, 117755), (290, 70653), (319, 64230), (330, 62089), (435, 47102), (638, 32115), (870, 23551), (957, 21410), (1595, 12846), (1914, 10705), (2141, 9570), (3190, 6423), (4282, 4785)]