20848000

素因数分解:

$2^7\times 5^3\times {\mathrm{1303}}^1$

素因数の和:1332

約数の個数: 64

約数和(自身を含む): 51873120

約数和(自身を除く): 31025120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1303, 1600, 2000, 2606, 3200, 4000, 5212, 6515, 8000, 10424, 13030, 16000, 20848, 26060, 32575, 41696, 52120, 65150, 83392, 104240, 130300, 162875, 166784, 208480, 260600, 325750, 416960, 521200, 651500, 833920, 1042400, 1303000, 2084800, 2606000, 4169600, 5212000, 10424000, 20848000]

約数ペア:

[(1, 20848000), (2, 10424000), (4, 5212000), (5, 4169600), (8, 2606000), (10, 2084800), (16, 1303000), (20, 1042400), (25, 833920), (32, 651500), (40, 521200), (50, 416960), (64, 325750), (80, 260600), (100, 208480), (125, 166784), (128, 162875), (160, 130300), (200, 104240), (250, 83392), (320, 65150), (400, 52120), (500, 41696), (640, 32575), (800, 26060), (1000, 20848), (1303, 16000), (1600, 13030), (2000, 10424), (2606, 8000), (3200, 6515), (4000, 5212)]