19750545

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 35830080

約数和(自身を除く): 16079535

約数列:

[1, 3, 5, 9, 15, 43, 45, 59, 129, 173, 177, 215, 295, 387, 519, 531, 645, 865, 885, 1557, 1935, 2537, 2595, 2655, 7439, 7611, 7785, 10207, 12685, 22317, 22833, 30621, 37195, 38055, 51035, 66951, 91863, 111585, 114165, 153105, 334755, 438901, 459315, 1316703, 2194505, 3950109, 6583515, 19750545]

約数ペア:

[(1, 19750545), (3, 6583515), (5, 3950109), (9, 2194505), (15, 1316703), (43, 459315), (45, 438901), (59, 334755), (129, 153105), (173, 114165), (177, 111585), (215, 91863), (295, 66951), (387, 51035), (519, 38055), (531, 37195), (645, 30621), (865, 22833), (885, 22317), (1557, 12685), (1935, 10207), (2537, 7785), (2595, 7611), (2655, 7439)]