128519984

素因数分解:

$2^4\times {\mathrm{1627}}^1\times {\mathrm{4937}}^1$

素因数の和:6572

約数の個数: 20

約数和(自身を含む): 249210984

約数和(自身を除く): 120691000

約数列:

[1, 2, 4, 8, 16, 1627, 3254, 4937, 6508, 9874, 13016, 19748, 26032, 39496, 78992, 8032499, 16064998, 32129996, 64259992, 128519984]

約数ペア:

[(1, 128519984), (2, 64259992), (4, 32129996), (8, 16064998), (16, 8032499), (1627, 78992), (3254, 39496), (4937, 26032), (6508, 19748), (9874, 13016)]