80485520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52951}}^1$

素因数の和:52983

約数の個数: 40

約数和(自身を含む): 196981440

約数和(自身を除く): 116495920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 52951, 105902, 211804, 264755, 423608, 529510, 847216, 1006069, 1059020, 2012138, 2118040, 4024276, 4236080, 5030345, 8048552, 10060690, 16097104, 20121380, 40242760, 80485520]

約数ペア:

[(1, 80485520), (2, 40242760), (4, 20121380), (5, 16097104), (8, 10060690), (10, 8048552), (16, 5030345), (19, 4236080), (20, 4024276), (38, 2118040), (40, 2012138), (76, 1059020), (80, 1006069), (95, 847216), (152, 529510), (190, 423608), (304, 264755), (380, 211804), (760, 105902), (1520, 52951)]