645395138

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{1489}}^1\times {\mathrm{6991}}^1$

素因数の和:8513

約数の個数: 16

約数和(自身を含む): 1000135680

約数和(自身を除く): 354740542

約数列:

[1, 2, 31, 62, 1489, 2978, 6991, 13982, 46159, 92318, 216721, 433442, 10409599, 20819198, 322697569, 645395138]

約数ペア:

[(1, 645395138), (2, 322697569), (31, 20819198), (62, 10409599), (1489, 433442), (2978, 216721), (6991, 92318), (13982, 46159)]