20881500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13921}}^1$

素因数の和:13943

約数の個数: 48

約数和(自身を含む): 60811296

約数和(自身を除く): 39929796

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 750, 1500, 13921, 27842, 41763, 55684, 69605, 83526, 139210, 167052, 208815, 278420, 348025, 417630, 696050, 835260, 1044075, 1392100, 1740125, 2088150, 3480250, 4176300, 5220375, 6960500, 10440750, 20881500]

約数ペア:

[(1, 20881500), (2, 10440750), (3, 6960500), (4, 5220375), (5, 4176300), (6, 3480250), (10, 2088150), (12, 1740125), (15, 1392100), (20, 1044075), (25, 835260), (30, 696050), (50, 417630), (60, 348025), (75, 278420), (100, 208815), (125, 167052), (150, 139210), (250, 83526), (300, 69605), (375, 55684), (500, 41763), (750, 27842), (1500, 13921)]