345821680

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{21943}}^1$

素因数の和:22153

約数の個数: 40

約数和(自身を含む): 808153632

約数和(自身を除く): 462331952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 15760, 21943, 43886, 87772, 109715, 175544, 219430, 351088, 438860, 877720, 1755440, 4322771, 8645542, 17291084, 21613855, 34582168, 43227710, 69164336, 86455420, 172910840, 345821680]

約数ペア:

[(1, 345821680), (2, 172910840), (4, 86455420), (5, 69164336), (8, 43227710), (10, 34582168), (16, 21613855), (20, 17291084), (40, 8645542), (80, 4322771), (197, 1755440), (394, 877720), (788, 438860), (985, 351088), (1576, 219430), (1970, 175544), (3152, 109715), (3940, 87772), (7880, 43886), (15760, 21943)]