130420780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{931577}}^1$

素因数の和:931593

約数の個数: 24

約数和(自身を含む): 313010208

約数和(自身を除く): 182589428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 931577, 1863154, 3726308, 4657885, 6521039, 9315770, 13042078, 18631540, 26084156, 32605195, 65210390, 130420780]

約数ペア:

[(1, 130420780), (2, 65210390), (4, 32605195), (5, 26084156), (7, 18631540), (10, 13042078), (14, 9315770), (20, 6521039), (28, 4657885), (35, 3726308), (70, 1863154), (140, 931577)]