51344540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197479}}^1$

素因数の和:197501

約数の個数: 24

約数和(自身を含む): 116118240

約数和(自身を除く): 64773700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 197479, 394958, 789916, 987395, 1974790, 2567227, 3949580, 5134454, 10268908, 12836135, 25672270, 51344540]

約数ペア:

[(1, 51344540), (2, 25672270), (4, 12836135), (5, 10268908), (10, 5134454), (13, 3949580), (20, 2567227), (26, 1974790), (52, 987395), (65, 789916), (130, 394958), (260, 197479)]