388587775

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{7691}}^1$

素因数の和:7791

約数の個数: 24

約数和(自身を含む): 503610624

約数和(自身を除く): 115022849

約数列:

[1, 5, 25, 43, 47, 215, 235, 1075, 1175, 2021, 7691, 10105, 38455, 50525, 192275, 330713, 361477, 1653565, 1807385, 8267825, 9036925, 15543511, 77717555, 388587775]

約数ペア:

[(1, 388587775), (5, 77717555), (25, 15543511), (43, 9036925), (47, 8267825), (215, 1807385), (235, 1653565), (1075, 361477), (1175, 330713), (2021, 192275), (7691, 50525), (10105, 38455)]