20797500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:133

約数の個数: 120

約数和(自身を含む): 62979840

約数和(自身を除く): 42182340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 47, 50, 59, 60, 75, 94, 100, 118, 125, 141, 150, 177, 188, 235, 236, 250, 282, 295, 300, 354, 375, 470, 500, 564, 590, 625, 705, 708, 750, 885, 940, 1175, 1180, 1250, 1410, 1475, 1500, 1770, 1875, 2350, 2500, 2773, 2820, 2950, 3525, 3540, 3750, 4425, 4700, 5546, 5875, 5900, 7050, 7375, 7500, 8319, 8850, 11092, 11750, 13865, 14100, 14750, 16638, 17625, 17700, 22125, 23500, 27730, 29375, 29500, 33276, 35250, 36875, 41595, 44250, 55460, 58750, 69325, 70500, 73750, 83190, 88125, 88500, 110625, 117500, 138650, 147500, 166380, 176250, 207975, 221250, 277300, 346625, 352500, 415950, 442500, 693250, 831900, 1039875, 1386500, 1733125, 2079750, 3466250, 4159500, 5199375, 6932500, 10398750, 20797500]

約数ペア:

[(1, 20797500), (2, 10398750), (3, 6932500), (4, 5199375), (5, 4159500), (6, 3466250), (10, 2079750), (12, 1733125), (15, 1386500), (20, 1039875), (25, 831900), (30, 693250), (47, 442500), (50, 415950), (59, 352500), (60, 346625), (75, 277300), (94, 221250), (100, 207975), (118, 176250), (125, 166380), (141, 147500), (150, 138650), (177, 117500), (188, 110625), (235, 88500), (236, 88125), (250, 83190), (282, 73750), (295, 70500), (300, 69325), (354, 58750), (375, 55460), (470, 44250), (500, 41595), (564, 36875), (590, 35250), (625, 33276), (705, 29500), (708, 29375), (750, 27730), (885, 23500), (940, 22125), (1175, 17700), (1180, 17625), (1250, 16638), (1410, 14750), (1475, 14100), (1500, 13865), (1770, 11750), (1875, 11092), (2350, 8850), (2500, 8319), (2773, 7500), (2820, 7375), (2950, 7050), (3525, 5900), (3540, 5875), (3750, 5546), (4425, 4700)]