205319992

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{40039}}^1$

素因数の和:40686

約数の個数: 16

約数和(自身を含む): 385585200

約数和(自身を除く): 180265208

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 5128, 40039, 80078, 160156, 320312, 25664999, 51329998, 102659996, 205319992]

約数ペア:

[(1, 205319992), (2, 102659996), (4, 51329998), (8, 25664999), (641, 320312), (1282, 160156), (2564, 80078), (5128, 40039)]