78897969

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 127370880

約数和(自身を除く): 48472911

約数列:

[1, 3, 9, 17, 27, 51, 71, 81, 153, 213, 243, 269, 459, 639, 807, 1207, 1377, 1917, 2421, 3621, 4131, 4573, 5751, 7263, 10863, 13719, 17253, 19099, 21789, 32589, 41157, 57297, 65367, 97767, 123471, 171891, 293301, 324683, 370413, 515673, 974049, 1111239, 1547019, 2922147, 4641057, 8766441, 26299323, 78897969]

約数ペア:

[(1, 78897969), (3, 26299323), (9, 8766441), (17, 4641057), (27, 2922147), (51, 1547019), (71, 1111239), (81, 974049), (153, 515673), (213, 370413), (243, 324683), (269, 293301), (459, 171891), (639, 123471), (807, 97767), (1207, 65367), (1377, 57297), (1917, 41157), (2421, 32589), (3621, 21789), (4131, 19099), (4573, 17253), (5751, 13719), (7263, 10863)]