20528970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8887}}^1$

素因数の和:8915

約数の個数: 64

約数和(自身を含む): 61433856

約数和(自身を除く): 40904886

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 154, 165, 210, 231, 330, 385, 462, 770, 1155, 2310, 8887, 17774, 26661, 44435, 53322, 62209, 88870, 97757, 124418, 133305, 186627, 195514, 266610, 293271, 311045, 373254, 488785, 586542, 622090, 684299, 933135, 977570, 1368598, 1466355, 1866270, 2052897, 2932710, 3421495, 4105794, 6842990, 10264485, 20528970]

約数ペア:

[(1, 20528970), (2, 10264485), (3, 6842990), (5, 4105794), (6, 3421495), (7, 2932710), (10, 2052897), (11, 1866270), (14, 1466355), (15, 1368598), (21, 977570), (22, 933135), (30, 684299), (33, 622090), (35, 586542), (42, 488785), (55, 373254), (66, 311045), (70, 293271), (77, 266610), (105, 195514), (110, 186627), (154, 133305), (165, 124418), (210, 97757), (231, 88870), (330, 62209), (385, 53322), (462, 44435), (770, 26661), (1155, 17774), (2310, 8887)]