257012

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:215

約数の個数: 24

約数和(自身を含む): 525504

約数和(自身を除く): 268492

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 137, 268, 274, 469, 548, 938, 959, 1876, 1918, 3836, 9179, 18358, 36716, 64253, 128506, 257012]

約数ペア:

[(1, 257012), (2, 128506), (4, 64253), (7, 36716), (14, 18358), (28, 9179), (67, 3836), (134, 1918), (137, 1876), (268, 959), (274, 938), (469, 548)]