1971120775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{43633}}^1$

素因数の和:43795

約数の個数: 24

約数和(自身を含む): 2651201840

約数和(自身を除く): 680081065

約数列:

[1, 5, 13, 25, 65, 139, 325, 695, 1807, 3475, 9035, 43633, 45175, 218165, 567229, 1090825, 2836145, 6064987, 14180725, 30324935, 78844831, 151624675, 394224155, 1971120775]

約数ペア:

[(1, 1971120775), (5, 394224155), (13, 151624675), (25, 78844831), (65, 30324935), (139, 14180725), (325, 6064987), (695, 2836145), (1807, 1090825), (3475, 567229), (9035, 218165), (43633, 45175)]