280623

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:123

約数の個数: 24

約数和(自身を含む): 459648

約数和(自身を除く): 179025

約数列:

[1, 3, 7, 21, 23, 49, 69, 83, 147, 161, 249, 483, 581, 1127, 1743, 1909, 3381, 4067, 5727, 12201, 13363, 40089, 93541, 280623]

約数ペア:

[(1, 280623), (3, 93541), (7, 40089), (21, 13363), (23, 12201), (49, 5727), (69, 4067), (83, 3381), (147, 1909), (161, 1743), (249, 1127), (483, 581)]