198740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 440160

約数和(自身を除く): 241420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 523, 1046, 2092, 2615, 5230, 9937, 10460, 19874, 39748, 49685, 99370, 198740]

約数ペア:

[(1, 198740), (2, 99370), (4, 49685), (5, 39748), (10, 19874), (19, 10460), (20, 9937), (38, 5230), (76, 2615), (95, 2092), (190, 1046), (380, 523)]