20163239425

素因数分解:

$5^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{330139}}^1$

素因数の和:330505

約数の個数: 24

約数和(自身を含む): 28656152000

約数和(自身を除く): 8492912575

約数列:

[1, 5, 7, 25, 35, 175, 349, 1745, 2443, 8725, 12215, 61075, 330139, 1650695, 2310973, 8253475, 11554865, 57774325, 115218511, 576092555, 806529577, 2880462775, 4032647885, 20163239425]

約数ペア:

[(1, 20163239425), (5, 4032647885), (7, 2880462775), (25, 806529577), (35, 576092555), (175, 115218511), (349, 57774325), (1745, 11554865), (2443, 8253475), (8725, 2310973), (12215, 1650695), (61075, 330139)]