19897748500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{35311}}^1$

素因数の和:35367

約数の個数: 144

約数和(自身を含む): 52751043072

約数和(自身を除く): 32853294572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 49, 50, 70, 92, 98, 100, 115, 125, 140, 161, 175, 196, 230, 245, 250, 322, 350, 460, 490, 500, 575, 644, 700, 805, 875, 980, 1127, 1150, 1225, 1610, 1750, 2254, 2300, 2450, 2875, 3220, 3500, 4025, 4508, 4900, 5635, 5750, 6125, 8050, 11270, 11500, 12250, 16100, 20125, 22540, 24500, 28175, 35311, 40250, 56350, 70622, 80500, 112700, 140875, 141244, 176555, 247177, 281750, 353110, 494354, 563500, 706220, 812153, 882775, 988708, 1235885, 1624306, 1730239, 1765550, 2471770, 3248612, 3460478, 3531100, 4060765, 4413875, 4943540, 5685071, 6179425, 6920956, 8121530, 8651195, 8827750, 11370142, 12358850, 16243060, 17302390, 17655500, 20303825, 22740284, 24717700, 28425355, 30897125, 34604780, 39795497, 40607650, 43255975, 56850710, 61794250, 79590994, 81215300, 86511950, 101519125, 113701420, 123588500, 142126775, 159181988, 173023900, 198977485, 203038250, 216279875, 284253550, 397954970, 406076500, 432559750, 568507100, 710633875, 795909940, 865119500, 994887425, 1421267750, 1989774850, 2842535500, 3979549700, 4974437125, 9948874250, 19897748500]

約数ペア:

[(1, 19897748500), (2, 9948874250), (4, 4974437125), (5, 3979549700), (7, 2842535500), (10, 1989774850), (14, 1421267750), (20, 994887425), (23, 865119500), (25, 795909940), (28, 710633875), (35, 568507100), (46, 432559750), (49, 406076500), (50, 397954970), (70, 284253550), (92, 216279875), (98, 203038250), (100, 198977485), (115, 173023900), (125, 159181988), (140, 142126775), (161, 123588500), (175, 113701420), (196, 101519125), (230, 86511950), (245, 81215300), (250, 79590994), (322, 61794250), (350, 56850710), (460, 43255975), (490, 40607650), (500, 39795497), (575, 34604780), (644, 30897125), (700, 28425355), (805, 24717700), (875, 22740284), (980, 20303825), (1127, 17655500), (1150, 17302390), (1225, 16243060), (1610, 12358850), (1750, 11370142), (2254, 8827750), (2300, 8651195), (2450, 8121530), (2875, 6920956), (3220, 6179425), (3500, 5685071), (4025, 4943540), (4508, 4413875), (4900, 4060765), (5635, 3531100), (5750, 3460478), (6125, 3248612), (8050, 2471770), (11270, 1765550), (11500, 1730239), (12250, 1624306), (16100, 1235885), (20125, 988708), (22540, 882775), (24500, 812153), (28175, 706220), (35311, 563500), (40250, 494354), (56350, 353110), (70622, 281750), (80500, 247177), (112700, 176555), (140875, 141244)]