20660400

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{1913}}^1$

素因数の和:1940

約数の個数: 120

約数和(自身を含む): 73574160

約数和(自身を除く): 52913760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 90, 100, 108, 120, 135, 144, 150, 180, 200, 216, 225, 240, 270, 300, 360, 400, 432, 450, 540, 600, 675, 720, 900, 1080, 1200, 1350, 1800, 1913, 2160, 2700, 3600, 3826, 5400, 5739, 7652, 9565, 10800, 11478, 15304, 17217, 19130, 22956, 28695, 30608, 34434, 38260, 45912, 47825, 51651, 57390, 68868, 76520, 86085, 91824, 95650, 103302, 114780, 137736, 143475, 153040, 172170, 191300, 206604, 229560, 258255, 275472, 286950, 344340, 382600, 413208, 430425, 459120, 516510, 573900, 688680, 765200, 826416, 860850, 1033020, 1147800, 1291275, 1377360, 1721700, 2066040, 2295600, 2582550, 3443400, 4132080, 5165100, 6886800, 10330200, 20660400]

約数ペア:

[(1, 20660400), (2, 10330200), (3, 6886800), (4, 5165100), (5, 4132080), (6, 3443400), (8, 2582550), (9, 2295600), (10, 2066040), (12, 1721700), (15, 1377360), (16, 1291275), (18, 1147800), (20, 1033020), (24, 860850), (25, 826416), (27, 765200), (30, 688680), (36, 573900), (40, 516510), (45, 459120), (48, 430425), (50, 413208), (54, 382600), (60, 344340), (72, 286950), (75, 275472), (80, 258255), (90, 229560), (100, 206604), (108, 191300), (120, 172170), (135, 153040), (144, 143475), (150, 137736), (180, 114780), (200, 103302), (216, 95650), (225, 91824), (240, 86085), (270, 76520), (300, 68868), (360, 57390), (400, 51651), (432, 47825), (450, 45912), (540, 38260), (600, 34434), (675, 30608), (720, 28695), (900, 22956), (1080, 19130), (1200, 17217), (1350, 15304), (1800, 11478), (1913, 10800), (2160, 9565), (2700, 7652), (3600, 5739), (3826, 5400)]