1988039977

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 2683699200

約数和(自身を除く): 695659223

約数列:

[1, 7, 11, 19, 77, 79, 103, 133, 167, 209, 553, 721, 869, 1133, 1169, 1463, 1501, 1837, 1957, 3173, 6083, 7931, 8137, 10507, 12859, 13193, 13699, 16511, 17201, 21527, 22211, 34903, 56959, 89507, 92351, 115577, 120407, 145123, 150689, 154603, 189211, 244321, 250667, 326819, 626549, 1015861, 1082221, 1324477, 1358879, 1700633, 1754669, 2287733, 2757337, 3595009, 9512153, 11904431, 14947669, 19301359, 25165063, 25818701, 104633683, 180730907, 284005711, 1988039977]

約数ペア:

[(1, 1988039977), (7, 284005711), (11, 180730907), (19, 104633683), (77, 25818701), (79, 25165063), (103, 19301359), (133, 14947669), (167, 11904431), (209, 9512153), (553, 3595009), (721, 2757337), (869, 2287733), (1133, 1754669), (1169, 1700633), (1463, 1358879), (1501, 1324477), (1837, 1082221), (1957, 1015861), (3173, 626549), (6083, 326819), (7931, 250667), (8137, 244321), (10507, 189211), (12859, 154603), (13193, 150689), (13699, 145123), (16511, 120407), (17201, 115577), (21527, 92351), (22211, 89507), (34903, 56959)]