28971075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 55274240

約数和(自身を除く): 26303165

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 139, 175, 397, 417, 525, 695, 973, 1191, 1985, 2085, 2779, 2919, 3475, 4865, 5955, 8337, 9925, 10425, 13895, 14595, 24325, 29775, 41685, 55183, 69475, 72975, 165549, 208425, 275915, 386281, 827745, 1158843, 1379575, 1931405, 4138725, 5794215, 9657025, 28971075]

約数ペア:

[(1, 28971075), (3, 9657025), (5, 5794215), (7, 4138725), (15, 1931405), (21, 1379575), (25, 1158843), (35, 827745), (75, 386281), (105, 275915), (139, 208425), (175, 165549), (397, 72975), (417, 69475), (525, 55183), (695, 41685), (973, 29775), (1191, 24325), (1985, 14595), (2085, 13895), (2779, 10425), (2919, 9925), (3475, 8337), (4865, 5955)]