129312976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{621697}}^1$

素因数の和:621718

約数の個数: 20

約数和(自身を含む): 269816932

約数和(自身を除く): 140503956

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 621697, 1243394, 2486788, 4973576, 8082061, 9947152, 16164122, 32328244, 64656488, 129312976]

約数ペア:

[(1, 129312976), (2, 64656488), (4, 32328244), (8, 16164122), (13, 9947152), (16, 8082061), (26, 4973576), (52, 2486788), (104, 1243394), (208, 621697)]