638409103620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{247445389}}^1$

素因数の和:247445444

約数の個数: 48

約数和(自身を含む): 1829116322880

約数和(自身を除く): 1190707219260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 247445389, 494890778, 742336167, 989781556, 1237226945, 1484672334, 2474453890, 2969344668, 3711680835, 4948907780, 7423361670, 10640151727, 14846723340, 21280303454, 31920455181, 42560606908, 53200758635, 63840910362, 106401517270, 127681820724, 159602275905, 212803034540, 319204551810, 638409103620]

約数ペア:

[(1, 638409103620), (2, 319204551810), (3, 212803034540), (4, 159602275905), (5, 127681820724), (6, 106401517270), (10, 63840910362), (12, 53200758635), (15, 42560606908), (20, 31920455181), (30, 21280303454), (43, 14846723340), (60, 10640151727), (86, 7423361670), (129, 4948907780), (172, 3711680835), (215, 2969344668), (258, 2474453890), (430, 1484672334), (516, 1237226945), (645, 989781556), (860, 742336167), (1290, 494890778), (2580, 247445389)]