20924000

素因数分解:

$2^5\times 5^3\times {\mathrm{5231}}^1$

素因数の和:5256

約数の個数: 48

約数和(自身を含む): 51420096

約数和(自身を除く): 30496096

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, 5231, 10462, 20924, 26155, 41848, 52310, 83696, 104620, 130775, 167392, 209240, 261550, 418480, 523100, 653875, 836960, 1046200, 1307750, 2092400, 2615500, 4184800, 5231000, 10462000, 20924000]

約数ペア:

[(1, 20924000), (2, 10462000), (4, 5231000), (5, 4184800), (8, 2615500), (10, 2092400), (16, 1307750), (20, 1046200), (25, 836960), (32, 653875), (40, 523100), (50, 418480), (80, 261550), (100, 209240), (125, 167392), (160, 130775), (200, 104620), (250, 83696), (400, 52310), (500, 41848), (800, 26155), (1000, 20924), (2000, 10462), (4000, 5231)]