128596520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{247301}}^1$

素因数の和:247325

約数の個数: 32

約数和(自身を含む): 311600520

約数和(自身を除く): 183004000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 247301, 494602, 989204, 1236505, 1978408, 2473010, 3214913, 4946020, 6429826, 9892040, 12859652, 16074565, 25719304, 32149130, 64298260, 128596520]

約数ペア:

[(1, 128596520), (2, 64298260), (4, 32149130), (5, 25719304), (8, 16074565), (10, 12859652), (13, 9892040), (20, 6429826), (26, 4946020), (40, 3214913), (52, 2473010), (65, 1978408), (104, 1236505), (130, 989204), (260, 494602), (520, 247301)]