713521520

素因数分解:

$2^4\times 5^1\times {\mathrm{8919019}}^1$

素因数の和:8919032

約数の個数: 20

約数和(自身を含む): 1658937720

約数和(自身を除く): 945416200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8919019, 17838038, 35676076, 44595095, 71352152, 89190190, 142704304, 178380380, 356760760, 713521520]

約数ペア:

[(1, 713521520), (2, 356760760), (4, 178380380), (5, 142704304), (8, 89190190), (10, 71352152), (16, 44595095), (20, 35676076), (40, 17838038), (80, 8919019)]