28713025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{397}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 39086784

約数和(自身を除く): 10373759

約数列:

[1, 5, 11, 25, 55, 263, 275, 397, 1315, 1985, 2893, 4367, 6575, 9925, 14465, 21835, 72325, 104411, 109175, 522055, 1148521, 2610275, 5742605, 28713025]

約数ペア:

[(1, 28713025), (5, 5742605), (11, 2610275), (25, 1148521), (55, 522055), (263, 109175), (275, 104411), (397, 72325), (1315, 21835), (1985, 14465), (2893, 9925), (4367, 6575)]