28300675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:160

約数の個数: 36

約数和(自身を含む): 39761344

約数和(自身を除く): 11460669

約数列:

[1, 5, 13, 25, 31, 53, 65, 155, 265, 325, 403, 689, 775, 1325, 1643, 2015, 2809, 3445, 8215, 10075, 14045, 17225, 21359, 36517, 41075, 70225, 87079, 106795, 182585, 435395, 533975, 912925, 1132027, 2176975, 5660135, 28300675]

約数ペア:

[(1, 28300675), (5, 5660135), (13, 2176975), (25, 1132027), (31, 912925), (53, 533975), (65, 435395), (155, 182585), (265, 106795), (325, 87079), (403, 70225), (689, 41075), (775, 36517), (1325, 21359), (1643, 17225), (2015, 14045), (2809, 10075), (3445, 8215)]