2581355975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1\times {\mathrm{751}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 3625482240

約数和(自身を除く): 1044126265

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 431, 725, 751, 1595, 2155, 3755, 4741, 7975, 8261, 10775, 12499, 18775, 21779, 23705, 41305, 62495, 108895, 118525, 137489, 206525, 239569, 312475, 323681, 544475, 687445, 1197845, 1618405, 3437225, 3560491, 5989225, 8092025, 9386749, 17802455, 46933745, 89012275, 103254239, 234668725, 516271195, 2581355975]

約数ペア:

[(1, 2581355975), (5, 516271195), (11, 234668725), (25, 103254239), (29, 89012275), (55, 46933745), (145, 17802455), (275, 9386749), (319, 8092025), (431, 5989225), (725, 3560491), (751, 3437225), (1595, 1618405), (2155, 1197845), (3755, 687445), (4741, 544475), (7975, 323681), (8261, 312475), (10775, 239569), (12499, 206525), (18775, 137489), (21779, 118525), (23705, 108895), (41305, 62495)]