64387520

素因数分解:

$2^6\times 5^1\times {\mathrm{201211}}^1$

素因数の和:201228

約数の個数: 28

約数和(自身を含む): 153323544

約数和(自身を除く): 88936024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 201211, 402422, 804844, 1006055, 1609688, 2012110, 3219376, 4024220, 6438752, 8048440, 12877504, 16096880, 32193760, 64387520]

約数ペア:

[(1, 64387520), (2, 32193760), (4, 16096880), (5, 12877504), (8, 8048440), (10, 6438752), (16, 4024220), (20, 3219376), (32, 2012110), (40, 1609688), (64, 1006055), (80, 804844), (160, 402422), (320, 201211)]