20228960000

素因数分解:

$2^8\times 5^4\times {\mathrm{23}}^2\times {\mathrm{239}}^1$

素因数の和:321

約数の個数: 270

約数和(自身を含む): 52967357520

約数和(自身を除く): 32738397520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 125, 128, 160, 184, 200, 230, 239, 250, 256, 320, 368, 400, 460, 478, 500, 529, 575, 625, 640, 736, 800, 920, 956, 1000, 1058, 1150, 1195, 1250, 1280, 1472, 1600, 1840, 1912, 2000, 2116, 2300, 2390, 2500, 2645, 2875, 2944, 3200, 3680, 3824, 4000, 4232, 4600, 4780, 5000, 5290, 5497, 5750, 5888, 5975, 6400, 7360, 7648, 8000, 8464, 9200, 9560, 10000, 10580, 10994, 11500, 11950, 13225, 14375, 14720, 15296, 16000, 16928, 18400, 19120, 20000, 21160, 21988, 23000, 23900, 26450, 27485, 28750, 29440, 29875, 30592, 32000, 33856, 36800, 38240, 40000, 42320, 43976, 46000, 47800, 52900, 54970, 57500, 59750, 61184, 66125, 67712, 73600, 76480, 80000, 84640, 87952, 92000, 95600, 105800, 109940, 115000, 119500, 126431, 132250, 135424, 137425, 147200, 149375, 152960, 160000, 169280, 175904, 184000, 191200, 211600, 219880, 230000, 239000, 252862, 264500, 274850, 298750, 305920, 330625, 338560, 351808, 368000, 382400, 423200, 439760, 460000, 478000, 505724, 529000, 549700, 597500, 632155, 661250, 677120, 687125, 703616, 736000, 764800, 846400, 879520, 920000, 956000, 1011448, 1058000, 1099400, 1195000, 1264310, 1322500, 1374250, 1407232, 1529600, 1692800, 1759040, 1840000, 1912000, 2022896, 2116000, 2198800, 2390000, 2528620, 2645000, 2748500, 3160775, 3385600, 3435625, 3518080, 3680000, 3824000, 4045792, 4232000, 4397600, 4780000, 5057240, 5290000, 5497000, 6321550, 6871250, 7036160, 7648000, 8091584, 8464000, 8795200, 9560000, 10114480, 10580000, 10994000, 12643100, 13742500, 15803875, 16183168, 16928000, 17590400, 19120000, 20228960, 21160000, 21988000, 25286200, 27485000, 31607750, 32366336, 35180800, 38240000, 40457920, 42320000, 43976000, 50572400, 54970000, 63215500, 79019375, 80915840, 84640000, 87952000, 101144800, 109940000, 126431000, 158038750, 161831680, 175904000, 202289600, 219880000, 252862000, 316077500, 404579200, 439760000, 505724000, 632155000, 809158400, 879520000, 1011448000, 1264310000, 2022896000, 2528620000, 4045792000, 5057240000, 10114480000, 20228960000]

約数ペア:

[(1, 20228960000), (2, 10114480000), (4, 5057240000), (5, 4045792000), (8, 2528620000), (10, 2022896000), (16, 1264310000), (20, 1011448000), (23, 879520000), (25, 809158400), (32, 632155000), (40, 505724000), (46, 439760000), (50, 404579200), (64, 316077500), (80, 252862000), (92, 219880000), (100, 202289600), (115, 175904000), (125, 161831680), (128, 158038750), (160, 126431000), (184, 109940000), (200, 101144800), (230, 87952000), (239, 84640000), (250, 80915840), (256, 79019375), (320, 63215500), (368, 54970000), (400, 50572400), (460, 43976000), (478, 42320000), (500, 40457920), (529, 38240000), (575, 35180800), (625, 32366336), (640, 31607750), (736, 27485000), (800, 25286200), (920, 21988000), (956, 21160000), (1000, 20228960), (1058, 19120000), (1150, 17590400), (1195, 16928000), (1250, 16183168), (1280, 15803875), (1472, 13742500), (1600, 12643100), (1840, 10994000), (1912, 10580000), (2000, 10114480), (2116, 9560000), (2300, 8795200), (2390, 8464000), (2500, 8091584), (2645, 7648000), (2875, 7036160), (2944, 6871250), (3200, 6321550), (3680, 5497000), (3824, 5290000), (4000, 5057240), (4232, 4780000), (4600, 4397600), (4780, 4232000), (5000, 4045792), (5290, 3824000), (5497, 3680000), (5750, 3518080), (5888, 3435625), (5975, 3385600), (6400, 3160775), (7360, 2748500), (7648, 2645000), (8000, 2528620), (8464, 2390000), (9200, 2198800), (9560, 2116000), (10000, 2022896), (10580, 1912000), (10994, 1840000), (11500, 1759040), (11950, 1692800), (13225, 1529600), (14375, 1407232), (14720, 1374250), (15296, 1322500), (16000, 1264310), (16928, 1195000), (18400, 1099400), (19120, 1058000), (20000, 1011448), (21160, 956000), (21988, 920000), (23000, 879520), (23900, 846400), (26450, 764800), (27485, 736000), (28750, 703616), (29440, 687125), (29875, 677120), (30592, 661250), (32000, 632155), (33856, 597500), (36800, 549700), (38240, 529000), (40000, 505724), (42320, 478000), (43976, 460000), (46000, 439760), (47800, 423200), (52900, 382400), (54970, 368000), (57500, 351808), (59750, 338560), (61184, 330625), (66125, 305920), (67712, 298750), (73600, 274850), (76480, 264500), (80000, 252862), (84640, 239000), (87952, 230000), (92000, 219880), (95600, 211600), (105800, 191200), (109940, 184000), (115000, 175904), (119500, 169280), (126431, 160000), (132250, 152960), (135424, 149375), (137425, 147200)]