128535944

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{491}}^1\times {\mathrm{761}}^1$

素因数の和:1301

約数の個数: 32

約数和(自身を含む): 247436640

約数和(自身を除く): 118900696

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 491, 761, 982, 1522, 1964, 3044, 3928, 6088, 21113, 32723, 42226, 65446, 84452, 130892, 168904, 261784, 373651, 747302, 1494604, 2989208, 16066993, 32133986, 64267972, 128535944]

約数ペア:

[(1, 128535944), (2, 64267972), (4, 32133986), (8, 16066993), (43, 2989208), (86, 1494604), (172, 747302), (344, 373651), (491, 261784), (761, 168904), (982, 130892), (1522, 84452), (1964, 65446), (3044, 42226), (3928, 32723), (6088, 21113)]