220640000

素因数分解:

$2^8\times 5^4\times 7^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 180

約数和(自身を含む): 632160144

約数和(自身を除く): 411520144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 140, 160, 175, 197, 200, 224, 250, 256, 280, 320, 350, 394, 400, 448, 500, 560, 625, 640, 700, 788, 800, 875, 896, 985, 1000, 1120, 1250, 1280, 1379, 1400, 1576, 1600, 1750, 1792, 1970, 2000, 2240, 2500, 2758, 2800, 3152, 3200, 3500, 3940, 4000, 4375, 4480, 4925, 5000, 5516, 5600, 6304, 6400, 6895, 7000, 7880, 8000, 8750, 8960, 9850, 10000, 11032, 11200, 12608, 13790, 14000, 15760, 16000, 17500, 19700, 20000, 22064, 22400, 24625, 25216, 27580, 28000, 31520, 32000, 34475, 35000, 39400, 40000, 44128, 44800, 49250, 50432, 55160, 56000, 63040, 68950, 70000, 78800, 80000, 88256, 98500, 110320, 112000, 123125, 126080, 137900, 140000, 157600, 160000, 172375, 176512, 197000, 220640, 224000, 246250, 252160, 275800, 280000, 315200, 344750, 353024, 394000, 441280, 492500, 551600, 560000, 630400, 689500, 788000, 861875, 882560, 985000, 1103200, 1120000, 1260800, 1379000, 1576000, 1723750, 1765120, 1970000, 2206400, 2758000, 3152000, 3447500, 3940000, 4412800, 5516000, 6304000, 6895000, 7880000, 8825600, 11032000, 13790000, 15760000, 22064000, 27580000, 31520000, 44128000, 55160000, 110320000, 220640000]

約数ペア:

[(1, 220640000), (2, 110320000), (4, 55160000), (5, 44128000), (7, 31520000), (8, 27580000), (10, 22064000), (14, 15760000), (16, 13790000), (20, 11032000), (25, 8825600), (28, 7880000), (32, 6895000), (35, 6304000), (40, 5516000), (50, 4412800), (56, 3940000), (64, 3447500), (70, 3152000), (80, 2758000), (100, 2206400), (112, 1970000), (125, 1765120), (128, 1723750), (140, 1576000), (160, 1379000), (175, 1260800), (197, 1120000), (200, 1103200), (224, 985000), (250, 882560), (256, 861875), (280, 788000), (320, 689500), (350, 630400), (394, 560000), (400, 551600), (448, 492500), (500, 441280), (560, 394000), (625, 353024), (640, 344750), (700, 315200), (788, 280000), (800, 275800), (875, 252160), (896, 246250), (985, 224000), (1000, 220640), (1120, 197000), (1250, 176512), (1280, 172375), (1379, 160000), (1400, 157600), (1576, 140000), (1600, 137900), (1750, 126080), (1792, 123125), (1970, 112000), (2000, 110320), (2240, 98500), (2500, 88256), (2758, 80000), (2800, 78800), (3152, 70000), (3200, 68950), (3500, 63040), (3940, 56000), (4000, 55160), (4375, 50432), (4480, 49250), (4925, 44800), (5000, 44128), (5516, 40000), (5600, 39400), (6304, 35000), (6400, 34475), (6895, 32000), (7000, 31520), (7880, 28000), (8000, 27580), (8750, 25216), (8960, 24625), (9850, 22400), (10000, 22064), (11032, 20000), (11200, 19700), (12608, 17500), (13790, 16000), (14000, 15760)]