28026325

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:142

約数の個数: 36

約数和(自身を含む): 38017408

約数和(自身を除く): 9991083

約数列:

[1, 5, 25, 29, 31, 43, 145, 155, 215, 725, 775, 841, 899, 1075, 1247, 1333, 4205, 4495, 6235, 6665, 21025, 22475, 26071, 31175, 33325, 36163, 38657, 130355, 180815, 193285, 651775, 904075, 966425, 1121053, 5605265, 28026325]

約数ペア:

[(1, 28026325), (5, 5605265), (25, 1121053), (29, 966425), (31, 904075), (43, 651775), (145, 193285), (155, 180815), (215, 130355), (725, 38657), (775, 36163), (841, 33325), (899, 31175), (1075, 26071), (1247, 22475), (1333, 21025), (4205, 6665), (4495, 6235)]