28009025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{569}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 38167200

約数和(自身を除く): 10158175

約数列:

[1, 5, 11, 25, 55, 179, 275, 569, 895, 1969, 2845, 4475, 6259, 9845, 14225, 31295, 49225, 101851, 156475, 509255, 1120361, 2546275, 5601805, 28009025]

約数ペア:

[(1, 28009025), (5, 5601805), (11, 2546275), (25, 1120361), (55, 509255), (179, 156475), (275, 101851), (569, 49225), (895, 31295), (1969, 14225), (2845, 9845), (4475, 6259)]