28298809

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 40135680

約数和(自身を除く): 11836871

約数列:

[1, 7, 11, 19, 23, 29, 77, 133, 161, 203, 209, 253, 319, 437, 551, 667, 841, 1463, 1771, 2233, 3059, 3857, 4669, 4807, 5887, 6061, 7337, 9251, 12673, 15979, 19343, 33649, 42427, 51359, 64757, 88711, 111853, 135401, 139403, 175769, 212773, 367517, 975821, 1230383, 1489411, 2572619, 4042687, 28298809]

約数ペア:

[(1, 28298809), (7, 4042687), (11, 2572619), (19, 1489411), (23, 1230383), (29, 975821), (77, 367517), (133, 212773), (161, 175769), (203, 139403), (209, 135401), (253, 111853), (319, 88711), (437, 64757), (551, 51359), (667, 42427), (841, 33649), (1463, 19343), (1771, 15979), (2233, 12673), (3059, 9251), (3857, 7337), (4669, 6061), (4807, 5887)]