247788345

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{2833}}^1$

素因数の和:2879

約数の個数: 64

約数和(自身を含む): 489715200

約数和(自身を除く): 241926855

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 245, 255, 343, 357, 595, 735, 833, 1029, 1715, 1785, 2499, 2833, 4165, 5145, 5831, 8499, 12495, 14165, 17493, 19831, 29155, 42495, 48161, 59493, 87465, 99155, 138817, 144483, 240805, 297465, 337127, 416451, 694085, 722415, 971719, 1011381, 1685635, 2082255, 2359889, 2915157, 4858595, 5056905, 7079667, 11799445, 14575785, 16519223, 35398335, 49557669, 82596115, 247788345]

約数ペア:

[(1, 247788345), (3, 82596115), (5, 49557669), (7, 35398335), (15, 16519223), (17, 14575785), (21, 11799445), (35, 7079667), (49, 5056905), (51, 4858595), (85, 2915157), (105, 2359889), (119, 2082255), (147, 1685635), (245, 1011381), (255, 971719), (343, 722415), (357, 694085), (595, 416451), (735, 337127), (833, 297465), (1029, 240805), (1715, 144483), (1785, 138817), (2499, 99155), (2833, 87465), (4165, 59493), (5145, 48161), (5831, 42495), (8499, 29155), (12495, 19831), (14165, 17493)]