20612000

素因数分解:

$2^5\times 5^3\times {\mathrm{5153}}^1$

素因数の和:5178

約数の個数: 48

約数和(自身を含む): 50653512

約数和(自身を除く): 30041512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 5153, 10306, 20612, 25765, 41224, 51530, 82448, 103060, 128825, 164896, 206120, 257650, 412240, 515300, 644125, 824480, 1030600, 1288250, 2061200, 2576500, 4122400, 5153000, 10306000, 20612000]

約数ペア:

[(1, 20612000), (2, 10306000), (4, 5153000), (5, 4122400), (8, 2576500), (10, 2061200), (16, 1288250), (20, 1030600), (25, 824480), (32, 644125), (40, 515300), (50, 412240), (80, 257650), (100, 206120), (125, 164896), (160, 128825), (200, 103060), (250, 82448), (400, 51530), (500, 41224), (800, 25765), (1000, 20612), (2000, 10306), (4000, 5153)]