7861905

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 14826240

約数和(自身を除く): 6964335

約数列:

[1, 3, 5, 9, 15, 17, 43, 45, 51, 85, 129, 153, 215, 239, 255, 387, 645, 717, 731, 765, 1195, 1935, 2151, 2193, 3585, 3655, 4063, 6579, 10277, 10755, 10965, 12189, 20315, 30831, 32895, 36567, 51385, 60945, 92493, 154155, 174709, 182835, 462465, 524127, 873545, 1572381, 2620635, 7861905]

約数ペア:

[(1, 7861905), (3, 2620635), (5, 1572381), (9, 873545), (15, 524127), (17, 462465), (43, 182835), (45, 174709), (51, 154155), (85, 92493), (129, 60945), (153, 51385), (215, 36567), (239, 32895), (255, 30831), (387, 20315), (645, 12189), (717, 10965), (731, 10755), (765, 10277), (1195, 6579), (1935, 4063), (2151, 3655), (2193, 3585)]