638691836

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1\times {\mathrm{593}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 1214269056

約数和(自身を除く): 575577220

約数列:

[1, 2, 4, 17, 34, 47, 68, 94, 188, 337, 593, 674, 799, 1186, 1348, 1598, 2372, 3196, 5729, 10081, 11458, 15839, 20162, 22916, 27871, 31678, 40324, 55742, 63356, 111484, 199841, 269263, 399682, 473807, 538526, 799364, 947614, 1077052, 1895228, 3397297, 6794594, 9392527, 13589188, 18785054, 37570108, 159672959, 319345918, 638691836]

約数ペア:

[(1, 638691836), (2, 319345918), (4, 159672959), (17, 37570108), (34, 18785054), (47, 13589188), (68, 9392527), (94, 6794594), (188, 3397297), (337, 1895228), (593, 1077052), (674, 947614), (799, 799364), (1186, 538526), (1348, 473807), (1598, 399682), (2372, 269263), (3196, 199841), (5729, 111484), (10081, 63356), (11458, 55742), (15839, 40324), (20162, 31678), (22916, 27871)]