18982810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 43234560

約数和(自身を除く): 24251750

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 89, 110, 154, 178, 277, 385, 445, 554, 623, 770, 890, 979, 1246, 1385, 1939, 1958, 2770, 3047, 3115, 3878, 4895, 6094, 6230, 6853, 9695, 9790, 13706, 15235, 19390, 21329, 24653, 30470, 34265, 42658, 49306, 68530, 106645, 123265, 172571, 213290, 246530, 271183, 345142, 542366, 862855, 1355915, 1725710, 1898281, 2711830, 3796562, 9491405, 18982810]

約数ペア:

[(1, 18982810), (2, 9491405), (5, 3796562), (7, 2711830), (10, 1898281), (11, 1725710), (14, 1355915), (22, 862855), (35, 542366), (55, 345142), (70, 271183), (77, 246530), (89, 213290), (110, 172571), (154, 123265), (178, 106645), (277, 68530), (385, 49306), (445, 42658), (554, 34265), (623, 30470), (770, 24653), (890, 21329), (979, 19390), (1246, 15235), (1385, 13706), (1939, 9790), (1958, 9695), (2770, 6853), (3047, 6230), (3115, 6094), (3878, 4895)]