128436778

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{3163}}^1$

素因数の和:3501

約数の個数: 16

約数和(自身を含む): 195914880

約数和(自身を除く): 67478102

約数列:

[1, 2, 79, 158, 257, 514, 3163, 6326, 20303, 40606, 249877, 499754, 812891, 1625782, 64218389, 128436778]

約数ペア:

[(1, 128436778), (2, 64218389), (79, 1625782), (158, 812891), (257, 499754), (514, 249877), (3163, 40606), (6326, 20303)]