999786475

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{491}}^1\times {\mathrm{1031}}^1$

素因数の和:1611

約数の個数: 24

約数和(自身を含む): 1259205120

約数和(自身を除く): 259418645

約数列:

[1, 5, 25, 79, 395, 491, 1031, 1975, 2455, 5155, 12275, 25775, 38789, 81449, 193945, 407245, 506221, 969725, 2036225, 2531105, 12655525, 39991459, 199957295, 999786475]

約数ペア:

[(1, 999786475), (5, 199957295), (25, 39991459), (79, 12655525), (395, 2531105), (491, 2036225), (1031, 969725), (1975, 506221), (2455, 407245), (5155, 193945), (12275, 81449), (25775, 38789)]