838381825

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{20411}}^1$

素因数の和:20505

約数の個数: 24

約数和(自身を含む): 1093430016

約数和(自身を除く): 255048191

約数列:

[1, 5, 25, 31, 53, 155, 265, 775, 1325, 1643, 8215, 20411, 41075, 102055, 510275, 632741, 1081783, 3163705, 5408915, 15818525, 27044575, 33535273, 167676365, 838381825]

約数ペア:

[(1, 838381825), (5, 167676365), (25, 33535273), (31, 27044575), (53, 15818525), (155, 5408915), (265, 3163705), (775, 1081783), (1325, 632741), (1643, 510275), (8215, 102055), (20411, 41075)]