189804775

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{21031}}^1$

素因数の和:21079

約数の個数: 18

約数和(自身を含む): 248408952

約数和(自身を除く): 58604177

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 9025, 21031, 105155, 399589, 525775, 1997945, 7592191, 9989725, 37960955, 189804775]

約数ペア:

[(1, 189804775), (5, 37960955), (19, 9989725), (25, 7592191), (95, 1997945), (361, 525775), (475, 399589), (1805, 105155), (9025, 21031)]