21817909120

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1237}}^1$

素因数の和:1421

約数の個数: 256

約数和(自身を含む): 62067179520

約数和(自身を除く): 40249270400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 127, 128, 140, 155, 160, 217, 224, 248, 254, 280, 310, 320, 434, 448, 496, 508, 560, 620, 635, 640, 868, 889, 896, 992, 1016, 1085, 1120, 1237, 1240, 1270, 1736, 1778, 1984, 2032, 2170, 2240, 2474, 2480, 2540, 3472, 3556, 3937, 3968, 4064, 4340, 4445, 4480, 4948, 4960, 5080, 6185, 6944, 7112, 7874, 8128, 8659, 8680, 8890, 9896, 9920, 10160, 12370, 13888, 14224, 15748, 16256, 17318, 17360, 17780, 19685, 19792, 19840, 20320, 24740, 27559, 27776, 28448, 31496, 34636, 34720, 35560, 38347, 39370, 39584, 40640, 43295, 49480, 55118, 56896, 62992, 69272, 69440, 71120, 76694, 78740, 79168, 81280, 86590, 98960, 110236, 113792, 125984, 137795, 138544, 138880, 142240, 153388, 157099, 157480, 158336, 173180, 191735, 197920, 220472, 251968, 268429, 275590, 277088, 284480, 306776, 314198, 314960, 346360, 383470, 395840, 440944, 503936, 536858, 551180, 554176, 568960, 613552, 628396, 629920, 692720, 766940, 785495, 791680, 881888, 1073716, 1099693, 1102360, 1108352, 1227104, 1256792, 1259840, 1342145, 1385440, 1533880, 1570990, 1763776, 2147432, 2199386, 2204720, 2454208, 2513584, 2519680, 2684290, 2770880, 3067760, 3141980, 3527552, 4294864, 4398772, 4409440, 4870069, 4908416, 5027168, 5368580, 5498465, 5541760, 6135520, 6283960, 8589728, 8797544, 8818880, 9740138, 10054336, 10737160, 10996930, 12271040, 12567920, 17179456, 17595088, 17637760, 19480276, 20108672, 21474320, 21993860, 24350345, 24542080, 25135840, 34090483, 34358912, 35190176, 38960552, 42948640, 43987720, 48700690, 50271680, 68180966, 70380352, 77921104, 85897280, 87975440, 97401380, 100543360, 136361932, 140760704, 155842208, 170452415, 171794560, 175950880, 194802760, 272723864, 311684416, 340904830, 351901760, 389605520, 545447728, 623368832, 681809660, 703803520, 779211040, 1090895456, 1363619320, 1558422080, 2181790912, 2727238640, 3116844160, 4363581824, 5454477280, 10908954560, 21817909120]

約数ペア:

[(1, 21817909120), (2, 10908954560), (4, 5454477280), (5, 4363581824), (7, 3116844160), (8, 2727238640), (10, 2181790912), (14, 1558422080), (16, 1363619320), (20, 1090895456), (28, 779211040), (31, 703803520), (32, 681809660), (35, 623368832), (40, 545447728), (56, 389605520), (62, 351901760), (64, 340904830), (70, 311684416), (80, 272723864), (112, 194802760), (124, 175950880), (127, 171794560), (128, 170452415), (140, 155842208), (155, 140760704), (160, 136361932), (217, 100543360), (224, 97401380), (248, 87975440), (254, 85897280), (280, 77921104), (310, 70380352), (320, 68180966), (434, 50271680), (448, 48700690), (496, 43987720), (508, 42948640), (560, 38960552), (620, 35190176), (635, 34358912), (640, 34090483), (868, 25135840), (889, 24542080), (896, 24350345), (992, 21993860), (1016, 21474320), (1085, 20108672), (1120, 19480276), (1237, 17637760), (1240, 17595088), (1270, 17179456), (1736, 12567920), (1778, 12271040), (1984, 10996930), (2032, 10737160), (2170, 10054336), (2240, 9740138), (2474, 8818880), (2480, 8797544), (2540, 8589728), (3472, 6283960), (3556, 6135520), (3937, 5541760), (3968, 5498465), (4064, 5368580), (4340, 5027168), (4445, 4908416), (4480, 4870069), (4948, 4409440), (4960, 4398772), (5080, 4294864), (6185, 3527552), (6944, 3141980), (7112, 3067760), (7874, 2770880), (8128, 2684290), (8659, 2519680), (8680, 2513584), (8890, 2454208), (9896, 2204720), (9920, 2199386), (10160, 2147432), (12370, 1763776), (13888, 1570990), (14224, 1533880), (15748, 1385440), (16256, 1342145), (17318, 1259840), (17360, 1256792), (17780, 1227104), (19685, 1108352), (19792, 1102360), (19840, 1099693), (20320, 1073716), (24740, 881888), (27559, 791680), (27776, 785495), (28448, 766940), (31496, 692720), (34636, 629920), (34720, 628396), (35560, 613552), (38347, 568960), (39370, 554176), (39584, 551180), (40640, 536858), (43295, 503936), (49480, 440944), (55118, 395840), (56896, 383470), (62992, 346360), (69272, 314960), (69440, 314198), (71120, 306776), (76694, 284480), (78740, 277088), (79168, 275590), (81280, 268429), (86590, 251968), (98960, 220472), (110236, 197920), (113792, 191735), (125984, 173180), (137795, 158336), (138544, 157480), (138880, 157099), (142240, 153388)]