20198425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3271}}^1$

素因数の和:3313

約数の個数: 24

約数和(自身を含む): 28400960

約数和(自身を除く): 8202535

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 3271, 6175, 16355, 42523, 62149, 81775, 212615, 310745, 807937, 1063075, 1553725, 4039685, 20198425]

約数ペア:

[(1, 20198425), (5, 4039685), (13, 1553725), (19, 1063075), (25, 807937), (65, 310745), (95, 212615), (247, 81775), (325, 62149), (475, 42523), (1235, 16355), (3271, 6175)]