638577970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{129529}}^1$

素因数の和:129582

約数の個数: 32

約数和(自身を含む): 1259031600

約数和(自身を除く): 620453630

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4930, 129529, 259058, 647645, 1295290, 2201993, 3756341, 4403986, 7512682, 11009965, 18781705, 22019930, 37563410, 63857797, 127715594, 319288985, 638577970]

約数ペア:

[(1, 638577970), (2, 319288985), (5, 127715594), (10, 63857797), (17, 37563410), (29, 22019930), (34, 18781705), (58, 11009965), (85, 7512682), (145, 4403986), (170, 3756341), (290, 2201993), (493, 1295290), (986, 647645), (2465, 259058), (4930, 129529)]