28401725

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:302

約数の個数: 36

約数和(自身を含む): 39828180

約数和(自身を除く): 11426455

約数列:

[1, 5, 11, 25, 41, 55, 121, 205, 229, 275, 451, 605, 1025, 1145, 2255, 2519, 3025, 4961, 5725, 9389, 11275, 12595, 24805, 27709, 46945, 62975, 103279, 124025, 138545, 234725, 516395, 692725, 1136069, 2581975, 5680345, 28401725]

約数ペア:

[(1, 28401725), (5, 5680345), (11, 2581975), (25, 1136069), (41, 692725), (55, 516395), (121, 234725), (205, 138545), (229, 124025), (275, 103279), (451, 62975), (605, 46945), (1025, 27709), (1145, 24805), (2255, 12595), (2519, 11275), (3025, 9389), (4961, 5725)]