20258975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3203}}^1$

素因数の和:3247

約数の個数: 24

約数和(自身を含む): 28605312

約数和(自身を除く): 8346337

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 3203, 6325, 16015, 35233, 73669, 80075, 176165, 368345, 810359, 880825, 1841725, 4051795, 20258975]

約数ペア:

[(1, 20258975), (5, 4051795), (11, 1841725), (23, 880825), (25, 810359), (55, 368345), (115, 176165), (253, 80075), (275, 73669), (575, 35233), (1265, 16015), (3203, 6325)]