661738395

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{17389}}^1$

素因数の和:17499

約数の個数: 32

約数和(自身を含む): 1101830400

約数和(自身を除く): 440092005

約数列:

[1, 3, 5, 15, 43, 59, 129, 177, 215, 295, 645, 885, 2537, 7611, 12685, 17389, 38055, 52167, 86945, 260835, 747727, 1025951, 2243181, 3077853, 3738635, 5129755, 11215905, 15389265, 44115893, 132347679, 220579465, 661738395]

約数ペア:

[(1, 661738395), (3, 220579465), (5, 132347679), (15, 44115893), (43, 15389265), (59, 11215905), (129, 5129755), (177, 3738635), (215, 3077853), (295, 2243181), (645, 1025951), (885, 747727), (2537, 260835), (7611, 86945), (12685, 52167), (17389, 38055)]