257809424

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{6143}}^1$

素因数の和:6255

約数の個数: 40

約数和(自身を含む): 519585792

約数和(自身を除く): 261776368

約数列:

[1, 2, 4, 8, 16, 43, 61, 86, 122, 172, 244, 344, 488, 688, 976, 2623, 5246, 6143, 10492, 12286, 20984, 24572, 41968, 49144, 98288, 264149, 374723, 528298, 749446, 1056596, 1498892, 2113192, 2997784, 4226384, 5995568, 16113089, 32226178, 64452356, 128904712, 257809424]

約数ペア:

[(1, 257809424), (2, 128904712), (4, 64452356), (8, 32226178), (16, 16113089), (43, 5995568), (61, 4226384), (86, 2997784), (122, 2113192), (172, 1498892), (244, 1056596), (344, 749446), (488, 528298), (688, 374723), (976, 264149), (2623, 98288), (5246, 49144), (6143, 41968), (10492, 24572), (12286, 20984)]