20668500

素因数分解:

$2^2\times 3^3\times 5^3\times {\mathrm{1531}}^1$

素因数の和:1559

約数の個数: 96

約数和(自身を含む): 66917760

約数和(自身を除く): 46249260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 125, 135, 150, 180, 225, 250, 270, 300, 375, 450, 500, 540, 675, 750, 900, 1125, 1350, 1500, 1531, 2250, 2700, 3062, 3375, 4500, 4593, 6124, 6750, 7655, 9186, 13500, 13779, 15310, 18372, 22965, 27558, 30620, 38275, 41337, 45930, 55116, 68895, 76550, 82674, 91860, 114825, 137790, 153100, 165348, 191375, 206685, 229650, 275580, 344475, 382750, 413370, 459300, 574125, 688950, 765500, 826740, 1033425, 1148250, 1377900, 1722375, 2066850, 2296500, 3444750, 4133700, 5167125, 6889500, 10334250, 20668500]

約数ペア:

[(1, 20668500), (2, 10334250), (3, 6889500), (4, 5167125), (5, 4133700), (6, 3444750), (9, 2296500), (10, 2066850), (12, 1722375), (15, 1377900), (18, 1148250), (20, 1033425), (25, 826740), (27, 765500), (30, 688950), (36, 574125), (45, 459300), (50, 413370), (54, 382750), (60, 344475), (75, 275580), (90, 229650), (100, 206685), (108, 191375), (125, 165348), (135, 153100), (150, 137790), (180, 114825), (225, 91860), (250, 82674), (270, 76550), (300, 68895), (375, 55116), (450, 45930), (500, 41337), (540, 38275), (675, 30620), (750, 27558), (900, 22965), (1125, 18372), (1350, 15310), (1500, 13779), (1531, 13500), (2250, 9186), (2700, 7655), (3062, 6750), (3375, 6124), (4500, 4593)]