18659804917240

素因数分解:

$2^3\times 5^1\times {\mathrm{39089}}^1\times {\mathrm{11934179}}^1$

素因数の和:11973279

約数の個数: 32

約数和(自身を含む): 41985638658000

約数和(自身を除く): 23325833740760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 39089, 78178, 156356, 195445, 312712, 390890, 781780, 1563560, 11934179, 23868358, 47736716, 59670895, 95473432, 119341790, 238683580, 477367160, 466495122931, 932990245862, 1865980491724, 2332475614655, 3731960983448, 4664951229310, 9329902458620, 18659804917240]

約数ペア:

[(1, 18659804917240), (2, 9329902458620), (4, 4664951229310), (5, 3731960983448), (8, 2332475614655), (10, 1865980491724), (20, 932990245862), (40, 466495122931), (39089, 477367160), (78178, 238683580), (156356, 119341790), (195445, 95473432), (312712, 59670895), (390890, 47736716), (781780, 23868358), (1563560, 11934179)]