20659500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4591}}^1$

素因数の和:4616

約数の個数: 72

約数和(自身を含む): 65188032

約数和(自身を除く): 44528532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4591, 9182, 13773, 18364, 22955, 27546, 41319, 45910, 55092, 68865, 82638, 91820, 114775, 137730, 165276, 206595, 229550, 275460, 344325, 413190, 459100, 573875, 688650, 826380, 1032975, 1147750, 1377300, 1721625, 2065950, 2295500, 3443250, 4131900, 5164875, 6886500, 10329750, 20659500]

約数ペア:

[(1, 20659500), (2, 10329750), (3, 6886500), (4, 5164875), (5, 4131900), (6, 3443250), (9, 2295500), (10, 2065950), (12, 1721625), (15, 1377300), (18, 1147750), (20, 1032975), (25, 826380), (30, 688650), (36, 573875), (45, 459100), (50, 413190), (60, 344325), (75, 275460), (90, 229550), (100, 206595), (125, 165276), (150, 137730), (180, 114775), (225, 91820), (250, 82638), (300, 68865), (375, 55092), (450, 45910), (500, 41319), (750, 27546), (900, 22955), (1125, 18364), (1500, 13773), (2250, 9182), (4500, 4591)]