397339995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47387}}^1$

素因数の和:47451

約数の個数: 32

約数和(自身を含む): 700584192

約数和(自身を除く): 303244197

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2795, 8385, 47387, 142161, 236935, 616031, 710805, 1848093, 2037641, 3080155, 6112923, 9240465, 10188205, 26489333, 30564615, 79467999, 132446665, 397339995]

約数ペア:

[(1, 397339995), (3, 132446665), (5, 79467999), (13, 30564615), (15, 26489333), (39, 10188205), (43, 9240465), (65, 6112923), (129, 3080155), (195, 2037641), (215, 1848093), (559, 710805), (645, 616031), (1677, 236935), (2795, 142161), (8385, 47387)]