12912685

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 17424000

約数和(自身を除く): 4511315

約数列:

[1, 5, 19, 29, 43, 95, 109, 145, 215, 545, 551, 817, 1247, 2071, 2755, 3161, 4085, 4687, 6235, 10355, 15805, 23435, 23693, 60059, 89053, 118465, 135923, 300295, 445265, 679615, 2582537, 12912685]

約数ペア:

[(1, 12912685), (5, 2582537), (19, 679615), (29, 445265), (43, 300295), (95, 135923), (109, 118465), (145, 89053), (215, 60059), (545, 23693), (551, 23435), (817, 15805), (1247, 10355), (2071, 6235), (2755, 4687), (3161, 4085)]