208780418

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{3331}}^1$

素因数の和:3399

約数の個数: 48

約数和(自身を含む): 404158272

約数和(自身を除く): 195377854

約数列:

[1, 2, 7, 11, 14, 22, 37, 74, 77, 121, 154, 242, 259, 407, 518, 814, 847, 1694, 2849, 3331, 4477, 5698, 6662, 8954, 23317, 31339, 36641, 46634, 62678, 73282, 123247, 246494, 256487, 403051, 512974, 806102, 862729, 1355717, 1725458, 2711434, 2821357, 5642714, 9490019, 14912887, 18980038, 29825774, 104390209, 208780418]

約数ペア:

[(1, 208780418), (2, 104390209), (7, 29825774), (11, 18980038), (14, 14912887), (22, 9490019), (37, 5642714), (74, 2821357), (77, 2711434), (121, 1725458), (154, 1355717), (242, 862729), (259, 806102), (407, 512974), (518, 403051), (814, 256487), (847, 246494), (1694, 123247), (2849, 73282), (3331, 62678), (4477, 46634), (5698, 36641), (6662, 31339), (8954, 23317)]