64041520

素因数分解:

$2^4\times 5^1\times {\mathrm{800519}}^1$

素因数の和:800532

約数の個数: 20

約数和(自身を含む): 148896720

約数和(自身を除く): 84855200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800519, 1601038, 3202076, 4002595, 6404152, 8005190, 12808304, 16010380, 32020760, 64041520]

約数ペア:

[(1, 64041520), (2, 32020760), (4, 16010380), (5, 12808304), (8, 8005190), (10, 6404152), (16, 4002595), (20, 3202076), (40, 1601038), (80, 800519)]