639234530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{18217}}^1$

素因数の和:18275

約数の個数: 48

約数和(自身を含む): 1308416760

約数和(自身を除く): 669182230

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 121, 145, 242, 290, 319, 605, 638, 1210, 1595, 3190, 3509, 7018, 17545, 18217, 35090, 36434, 91085, 182170, 200387, 400774, 528293, 1001935, 1056586, 2003870, 2204257, 2641465, 4408514, 5282930, 5811223, 11021285, 11622446, 22042570, 29056115, 58112230, 63923453, 127846906, 319617265, 639234530]

約数ペア:

[(1, 639234530), (2, 319617265), (5, 127846906), (10, 63923453), (11, 58112230), (22, 29056115), (29, 22042570), (55, 11622446), (58, 11021285), (110, 5811223), (121, 5282930), (145, 4408514), (242, 2641465), (290, 2204257), (319, 2003870), (605, 1056586), (638, 1001935), (1210, 528293), (1595, 400774), (3190, 200387), (3509, 182170), (7018, 91085), (17545, 36434), (18217, 35090)]