257908546

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{1861}}^1$

素因数の和:2410

約数の個数: 32

約数和(自身を含む): 466542720

約数和(自身を除く): 208634174

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 521, 1042, 1861, 3647, 3722, 7294, 9899, 13027, 19798, 26054, 35359, 69293, 70718, 138586, 247513, 495026, 969581, 1939162, 6787067, 13574134, 18422039, 36844078, 128954273, 257908546]

約数ペア:

[(1, 257908546), (2, 128954273), (7, 36844078), (14, 18422039), (19, 13574134), (38, 6787067), (133, 1939162), (266, 969581), (521, 495026), (1042, 247513), (1861, 138586), (3647, 70718), (3722, 69293), (7294, 35359), (9899, 26054), (13027, 19798)]