157788166520

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2083}}^1\times {\mathrm{9613}}^1$

素因数の和:11904

約数の個数: 64

約数和(自身を含む): 357033964320

約数和(自身を除く): 199245797800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2083, 3940, 4166, 7880, 8332, 9613, 10415, 16664, 19226, 20830, 38452, 41660, 48065, 76904, 83320, 96130, 192260, 384520, 410351, 820702, 1641404, 1893761, 2051755, 3282808, 3787522, 4103510, 7575044, 8207020, 9468805, 15150088, 16414040, 18937610, 20023879, 37875220, 40047758, 75750440, 80095516, 100119395, 160191032, 200238790, 400477580, 800955160, 3944704163, 7889408326, 15778816652, 19723520815, 31557633304, 39447041630, 78894083260, 157788166520]

約数ペア:

[(1, 157788166520), (2, 78894083260), (4, 39447041630), (5, 31557633304), (8, 19723520815), (10, 15778816652), (20, 7889408326), (40, 3944704163), (197, 800955160), (394, 400477580), (788, 200238790), (985, 160191032), (1576, 100119395), (1970, 80095516), (2083, 75750440), (3940, 40047758), (4166, 37875220), (7880, 20023879), (8332, 18937610), (9613, 16414040), (10415, 15150088), (16664, 9468805), (19226, 8207020), (20830, 7575044), (38452, 4103510), (41660, 3787522), (48065, 3282808), (76904, 2051755), (83320, 1893761), (96130, 1641404), (192260, 820702), (384520, 410351)]