1278401278

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{19441}}^1$

素因数の和:19529

約数の個数: 48

約数和(自身を含む): 2473489008

約数和(自身を除く): 1195087730

約数列:

[1, 2, 7, 11, 14, 22, 49, 61, 77, 98, 122, 154, 427, 539, 671, 854, 1078, 1342, 2989, 4697, 5978, 9394, 19441, 32879, 38882, 65758, 136087, 213851, 272174, 427702, 952609, 1185901, 1496957, 1905218, 2371802, 2993914, 8301307, 10478699, 13044911, 16602614, 20957398, 26089822, 58109149, 91314377, 116218298, 182628754, 639200639, 1278401278]

約数ペア:

[(1, 1278401278), (2, 639200639), (7, 182628754), (11, 116218298), (14, 91314377), (22, 58109149), (49, 26089822), (61, 20957398), (77, 16602614), (98, 13044911), (122, 10478699), (154, 8301307), (427, 2993914), (539, 2371802), (671, 1905218), (854, 1496957), (1078, 1185901), (1342, 952609), (2989, 427702), (4697, 272174), (5978, 213851), (9394, 136087), (19441, 65758), (32879, 38882)]