156911975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 227664000

約数和(自身を除く): 70752025

約数列:

[1, 5, 11, 19, 25, 55, 59, 95, 209, 275, 295, 475, 509, 649, 1045, 1121, 1475, 2545, 3245, 5225, 5599, 5605, 9671, 12331, 12725, 16225, 27995, 28025, 30031, 48355, 61655, 106381, 139975, 150155, 241775, 308275, 330341, 531905, 570589, 750775, 1651705, 2659525, 2852945, 6276479, 8258525, 14264725, 31382395, 156911975]

約数ペア:

[(1, 156911975), (5, 31382395), (11, 14264725), (19, 8258525), (25, 6276479), (55, 2852945), (59, 2659525), (95, 1651705), (209, 750775), (275, 570589), (295, 531905), (475, 330341), (509, 308275), (649, 241775), (1045, 150155), (1121, 139975), (1475, 106381), (2545, 61655), (3245, 48355), (5225, 30031), (5599, 28025), (5605, 27995), (9671, 16225), (12331, 12725)]