7123780

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2719}}^1$

素因数の和:2859

約数の個数: 24

約数和(自身を含む): 15079680

約数和(自身を除く): 7955900

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 2719, 5438, 10876, 13595, 27190, 54380, 356189, 712378, 1424756, 1780945, 3561890, 7123780]

約数ペア:

[(1, 7123780), (2, 3561890), (4, 1780945), (5, 1424756), (10, 712378), (20, 356189), (131, 54380), (262, 27190), (524, 13595), (655, 10876), (1310, 5438), (2620, 2719)]