128913128

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{4093}}^1$

素因数の和:4257

約数の個数: 32

約数和(自身を含む): 251535360

約数和(自身を除く): 122622232

約数列:

[1, 2, 4, 8, 31, 62, 124, 127, 248, 254, 508, 1016, 3937, 4093, 7874, 8186, 15748, 16372, 31496, 32744, 126883, 253766, 507532, 519811, 1015064, 1039622, 2079244, 4158488, 16114141, 32228282, 64456564, 128913128]

約数ペア:

[(1, 128913128), (2, 64456564), (4, 32228282), (8, 16114141), (31, 4158488), (62, 2079244), (124, 1039622), (127, 1015064), (248, 519811), (254, 507532), (508, 253766), (1016, 126883), (3937, 32744), (4093, 31496), (7874, 16372), (8186, 15748)]