81423376

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{124121}}^1$

素因数の和:124170

約数の個数: 20

約数和(自身を含む): 161606844

約数和(自身を除く): 80183468

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 124121, 248242, 496484, 992968, 1985936, 5088961, 10177922, 20355844, 40711688, 81423376]

約数ペア:

[(1, 81423376), (2, 40711688), (4, 20355844), (8, 10177922), (16, 5088961), (41, 1985936), (82, 992968), (164, 496484), (328, 248242), (656, 124121)]