20457050

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{5179}}^1$

素因数の和:5270

約数の個数: 24

約数和(自身を含む): 38539200

約数和(自身を除く): 18082150

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 3950, 5179, 10358, 25895, 51790, 129475, 258950, 409141, 818282, 2045705, 4091410, 10228525, 20457050]

約数ペア:

[(1, 20457050), (2, 10228525), (5, 4091410), (10, 2045705), (25, 818282), (50, 409141), (79, 258950), (158, 129475), (395, 51790), (790, 25895), (1975, 10358), (3950, 5179)]