128400633

素因数分解:

$3^4\times {\mathrm{641}}^1\times {\mathrm{2473}}^1$

素因数の和:3126

約数の個数: 20

約数和(自身を含む): 192185268

約数和(自身を除く): 63784635

約数列:

[1, 3, 9, 27, 81, 641, 1923, 2473, 5769, 7419, 17307, 22257, 51921, 66771, 200313, 1585193, 4755579, 14266737, 42800211, 128400633]

約数ペア:

[(1, 128400633), (3, 42800211), (9, 14266737), (27, 4755579), (81, 1585193), (641, 200313), (1923, 66771), (2473, 51921), (5769, 22257), (7419, 17307)]