199068125

素因数分解:

$5^4\times {\mathrm{431}}^1\times {\mathrm{739}}^1$

素因数の和:1190

約数の個数: 20

約数和(自身を含む): 249670080

約数和(自身を除く): 50601955

約数列:

[1, 5, 25, 125, 431, 625, 739, 2155, 3695, 10775, 18475, 53875, 92375, 269375, 318509, 461875, 1592545, 7962725, 39813625, 199068125]

約数ペア:

[(1, 199068125), (5, 39813625), (25, 7962725), (125, 1592545), (431, 461875), (625, 318509), (739, 269375), (2155, 92375), (3695, 53875), (10775, 18475)]