640160528

素因数分解:

$2^4\times 7^1\times {\mathrm{5715719}}^1$

素因数の和:5715734

約数の個数: 20

約数和(自身を含む): 1417498560

約数和(自身を除く): 777338032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 5715719, 11431438, 22862876, 40010033, 45725752, 80020066, 91451504, 160040132, 320080264, 640160528]

約数ペア:

[(1, 640160528), (2, 320080264), (4, 160040132), (7, 91451504), (8, 80020066), (14, 45725752), (16, 40010033), (28, 22862876), (56, 11431438), (112, 5715719)]