81980782

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{631}}^1$

素因数の和:928

約数の個数: 32

約数和(自身を含む): 140152320

約数和(自身を除く): 58171538

約数列:

[1, 2, 13, 19, 26, 38, 247, 263, 494, 526, 631, 1262, 3419, 4997, 6838, 8203, 9994, 11989, 16406, 23978, 64961, 129922, 155857, 165953, 311714, 331906, 2157389, 3153107, 4314778, 6306214, 40990391, 81980782]

約数ペア:

[(1, 81980782), (2, 40990391), (13, 6306214), (19, 4314778), (26, 3153107), (38, 2157389), (247, 331906), (263, 311714), (494, 165953), (526, 155857), (631, 129922), (1262, 64961), (3419, 23978), (4997, 16406), (6838, 11989), (8203, 9994)]