648309790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{1229}}^1$

素因数の和:1389

約数の個数: 64

約数和(自身を含む): 1291204800

約数和(自身を除く): 642895010

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 107, 145, 170, 214, 290, 493, 535, 986, 1070, 1229, 1819, 2458, 2465, 3103, 3638, 4930, 6145, 6206, 9095, 12290, 15515, 18190, 20893, 31030, 35641, 41786, 52751, 71282, 104465, 105502, 131503, 178205, 208930, 263006, 263755, 356410, 527510, 605897, 657515, 1211794, 1315030, 2235551, 3029485, 3813587, 4471102, 6058970, 7627174, 11177755, 19067935, 22355510, 38135870, 64830979, 129661958, 324154895, 648309790]

約数ペア:

[(1, 648309790), (2, 324154895), (5, 129661958), (10, 64830979), (17, 38135870), (29, 22355510), (34, 19067935), (58, 11177755), (85, 7627174), (107, 6058970), (145, 4471102), (170, 3813587), (214, 3029485), (290, 2235551), (493, 1315030), (535, 1211794), (986, 657515), (1070, 605897), (1229, 527510), (1819, 356410), (2458, 263755), (2465, 263006), (3103, 208930), (3638, 178205), (4930, 131503), (6145, 105502), (6206, 104465), (9095, 71282), (12290, 52751), (15515, 41786), (18190, 35641), (20893, 31030)]