128712248

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{74143}}^1$

素因数の和:74187

約数の個数: 32

約数和(自身を含む): 284712960

約数和(自身を除く): 156000712

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 74143, 148286, 296572, 519001, 593144, 1038002, 2076004, 2298433, 4152008, 4596866, 9193732, 16089031, 18387464, 32178062, 64356124, 128712248]

約数ペア:

[(1, 128712248), (2, 64356124), (4, 32178062), (7, 18387464), (8, 16089031), (14, 9193732), (28, 4596866), (31, 4152008), (56, 2298433), (62, 2076004), (124, 1038002), (217, 593144), (248, 519001), (434, 296572), (868, 148286), (1736, 74143)]