28161175

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 42854400

約数和(自身を除く): 14693225

約数列:

[1, 5, 7, 25, 29, 31, 35, 145, 155, 175, 179, 203, 217, 725, 775, 895, 899, 1015, 1085, 1253, 4475, 4495, 5075, 5191, 5425, 5549, 6265, 6293, 22475, 25955, 27745, 31325, 31465, 36337, 38843, 129775, 138725, 157325, 160921, 181685, 194215, 804605, 908425, 971075, 1126447, 4023025, 5632235, 28161175]

約数ペア:

[(1, 28161175), (5, 5632235), (7, 4023025), (25, 1126447), (29, 971075), (31, 908425), (35, 804605), (145, 194215), (155, 181685), (175, 160921), (179, 157325), (203, 138725), (217, 129775), (725, 38843), (775, 36337), (895, 31465), (899, 31325), (1015, 27745), (1085, 25955), (1253, 22475), (4475, 6293), (4495, 6265), (5075, 5549), (5191, 5425)]