12901360

素因数分解:

$2^4\times 5^1\times {\mathrm{161267}}^1$

素因数の和:161280

約数の個数: 20

約数和(自身を含む): 29995848

約数和(自身を除く): 17094488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161267, 322534, 645068, 806335, 1290136, 1612670, 2580272, 3225340, 6450680, 12901360]

約数ペア:

[(1, 12901360), (2, 6450680), (4, 3225340), (5, 2580272), (8, 1612670), (10, 1290136), (16, 806335), (20, 645068), (40, 322534), (80, 161267)]