131457104

素因数分解:

$2^4\times {\mathrm{389}}^1\times {\mathrm{21121}}^1$

素因数の和:21518

約数の個数: 20

約数和(自身を含む): 255364980

約数和(自身を除く): 123907876

約数列:

[1, 2, 4, 8, 16, 389, 778, 1556, 3112, 6224, 21121, 42242, 84484, 168968, 337936, 8216069, 16432138, 32864276, 65728552, 131457104]

約数ペア:

[(1, 131457104), (2, 65728552), (4, 32864276), (8, 16432138), (16, 8216069), (389, 337936), (778, 168968), (1556, 84484), (3112, 42242), (6224, 21121)]