128356160

素因数分解:

$2^6\times 5^1\times {\mathrm{401113}}^1$

素因数の和:401130

約数の個数: 28

約数和(自身を含む): 305648868

約数和(自身を除く): 177292708

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 401113, 802226, 1604452, 2005565, 3208904, 4011130, 6417808, 8022260, 12835616, 16044520, 25671232, 32089040, 64178080, 128356160]

約数ペア:

[(1, 128356160), (2, 64178080), (4, 32089040), (5, 25671232), (8, 16044520), (10, 12835616), (16, 8022260), (20, 6417808), (32, 4011130), (40, 3208904), (64, 2005565), (80, 1604452), (160, 802226), (320, 401113)]