28908525

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 49996800

約数和(自身を除く): 21088275

約数列:

[1, 3, 5, 15, 25, 47, 59, 75, 139, 141, 177, 235, 295, 417, 695, 705, 885, 1175, 1475, 2085, 2773, 3475, 3525, 4425, 6533, 8201, 8319, 10425, 13865, 19599, 24603, 32665, 41005, 41595, 69325, 97995, 123015, 163325, 205025, 207975, 385447, 489975, 615075, 1156341, 1927235, 5781705, 9636175, 28908525]

約数ペア:

[(1, 28908525), (3, 9636175), (5, 5781705), (15, 1927235), (25, 1156341), (47, 615075), (59, 489975), (75, 385447), (139, 207975), (141, 205025), (177, 163325), (235, 123015), (295, 97995), (417, 69325), (695, 41595), (705, 41005), (885, 32665), (1175, 24603), (1475, 19599), (2085, 13865), (2773, 10425), (3475, 8319), (3525, 8201), (4425, 6533)]