128220841

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{6389}}^1$

素因数の和:6504

約数の個数: 16

約数和(自身を含む): 152133120

約数和(自身を除く): 23912279

約数列:

[1, 7, 47, 61, 329, 427, 2867, 6389, 20069, 44723, 300283, 389729, 2101981, 2728103, 18317263, 128220841]

約数ペア:

[(1, 128220841), (7, 18317263), (47, 2728103), (61, 2101981), (329, 389729), (427, 300283), (2867, 44723), (6389, 20069)]