128720912

素因数分解:

$2^4\times {\mathrm{683}}^1\times {\mathrm{11779}}^1$

素因数の和:12470

約数の個数: 20

約数和(自身を含む): 249783120

約数和(自身を除く): 121062208

約数列:

[1, 2, 4, 8, 16, 683, 1366, 2732, 5464, 10928, 11779, 23558, 47116, 94232, 188464, 8045057, 16090114, 32180228, 64360456, 128720912]

約数ペア:

[(1, 128720912), (2, 64360456), (4, 32180228), (8, 16090114), (16, 8045057), (683, 188464), (1366, 94232), (2732, 47116), (5464, 23558), (10928, 11779)]