1891569355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{6977}}^1$

素因数の和:7135

約数の個数: 32

約数和(自身を含む): 2527487424

約数和(自身を除く): 635918069

約数列:

[1, 5, 13, 43, 65, 97, 215, 485, 559, 1261, 2795, 4171, 6305, 6977, 20855, 34885, 54223, 90701, 271115, 300011, 453505, 676769, 1500055, 3383845, 3900143, 8797997, 19500715, 29101067, 43989985, 145505335, 378313871, 1891569355]

約数ペア:

[(1, 1891569355), (5, 378313871), (13, 145505335), (43, 43989985), (65, 29101067), (97, 19500715), (215, 8797997), (485, 3900143), (559, 3383845), (1261, 1500055), (2795, 676769), (4171, 453505), (6305, 300011), (6977, 271115), (20855, 90701), (34885, 54223)]