20338856960

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1$

素因数の和:1192

約数の個数: 176

約数和(自身を含む): 50810142720

約数和(自身を除く): 30471285760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 155, 160, 248, 254, 256, 310, 320, 496, 508, 512, 620, 635, 640, 992, 1009, 1016, 1024, 1240, 1270, 1280, 1984, 2018, 2032, 2480, 2540, 2560, 3937, 3968, 4036, 4064, 4960, 5045, 5080, 5120, 7874, 7936, 8072, 8128, 9920, 10090, 10160, 15748, 15872, 16144, 16256, 19685, 19840, 20180, 20320, 31279, 31496, 31744, 32288, 32512, 39370, 39680, 40360, 40640, 62558, 62992, 64576, 65024, 78740, 79360, 80720, 81280, 125116, 125984, 128143, 129152, 130048, 156395, 157480, 158720, 161440, 162560, 250232, 251968, 256286, 258304, 312790, 314960, 322880, 325120, 500464, 503936, 512572, 516608, 625580, 629920, 640715, 645760, 650240, 1000928, 1007872, 1025144, 1033216, 1251160, 1259840, 1281430, 1291520, 2001856, 2015744, 2050288, 2502320, 2519680, 2562860, 2583040, 3972433, 4003712, 4031488, 4100576, 5004640, 5039360, 5125720, 5166080, 7944866, 8007424, 8201152, 10009280, 10078720, 10251440, 15889732, 16014848, 16402304, 19862165, 20018560, 20157440, 20502880, 31779464, 32029696, 32804608, 39724330, 40037120, 41005760, 63558928, 65609216, 79448660, 80074240, 82011520, 127117856, 131218432, 158897320, 160148480, 164023040, 254235712, 317794640, 328046080, 508471424, 635589280, 656092160, 1016942848, 1271178560, 2033885696, 2542357120, 4067771392, 5084714240, 10169428480, 20338856960]

約数ペア:

[(1, 20338856960), (2, 10169428480), (4, 5084714240), (5, 4067771392), (8, 2542357120), (10, 2033885696), (16, 1271178560), (20, 1016942848), (31, 656092160), (32, 635589280), (40, 508471424), (62, 328046080), (64, 317794640), (80, 254235712), (124, 164023040), (127, 160148480), (128, 158897320), (155, 131218432), (160, 127117856), (248, 82011520), (254, 80074240), (256, 79448660), (310, 65609216), (320, 63558928), (496, 41005760), (508, 40037120), (512, 39724330), (620, 32804608), (635, 32029696), (640, 31779464), (992, 20502880), (1009, 20157440), (1016, 20018560), (1024, 19862165), (1240, 16402304), (1270, 16014848), (1280, 15889732), (1984, 10251440), (2018, 10078720), (2032, 10009280), (2480, 8201152), (2540, 8007424), (2560, 7944866), (3937, 5166080), (3968, 5125720), (4036, 5039360), (4064, 5004640), (4960, 4100576), (5045, 4031488), (5080, 4003712), (5120, 3972433), (7874, 2583040), (7936, 2562860), (8072, 2519680), (8128, 2502320), (9920, 2050288), (10090, 2015744), (10160, 2001856), (15748, 1291520), (15872, 1281430), (16144, 1259840), (16256, 1251160), (19685, 1033216), (19840, 1025144), (20180, 1007872), (20320, 1000928), (31279, 650240), (31496, 645760), (31744, 640715), (32288, 629920), (32512, 625580), (39370, 516608), (39680, 512572), (40360, 503936), (40640, 500464), (62558, 325120), (62992, 322880), (64576, 314960), (65024, 312790), (78740, 258304), (79360, 256286), (80720, 251968), (81280, 250232), (125116, 162560), (125984, 161440), (128143, 158720), (129152, 157480), (130048, 156395)]