1990759688

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{620561}}^1$

素因数の和:620968

約数の個数: 16

約数和(自身を含む): 3741988860

約数和(自身を除く): 1751229172

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 620561, 1241122, 2482244, 4964488, 248844961, 497689922, 995379844, 1990759688]

約数ペア:

[(1, 1990759688), (2, 995379844), (4, 497689922), (8, 248844961), (401, 4964488), (802, 2482244), (1604, 1241122), (3208, 620561)]