20108966640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{307}}^2$

素因数の和:764

約数の個数: 240

約数和(自身を含む): 72038817792

約数和(自身を除く): 51929851152

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 127, 140, 168, 210, 240, 254, 280, 307, 336, 381, 420, 508, 560, 614, 635, 762, 840, 889, 921, 1016, 1228, 1270, 1524, 1535, 1680, 1778, 1842, 1905, 2032, 2149, 2456, 2540, 2667, 3048, 3070, 3556, 3684, 3810, 4298, 4445, 4605, 4912, 5080, 5334, 6096, 6140, 6447, 7112, 7368, 7620, 8596, 8890, 9210, 10160, 10668, 10745, 12280, 12894, 13335, 14224, 14736, 15240, 17192, 17780, 18420, 21336, 21490, 24560, 25788, 26670, 30480, 32235, 34384, 35560, 36840, 38989, 42672, 42980, 51576, 53340, 64470, 71120, 73680, 77978, 85960, 94249, 103152, 106680, 116967, 128940, 155956, 171920, 188498, 194945, 213360, 233934, 257880, 272923, 282747, 311912, 376996, 389890, 467868, 471245, 515760, 545846, 565494, 584835, 623824, 659743, 753992, 779780, 818769, 935736, 942490, 1091692, 1130988, 1169670, 1319486, 1364615, 1413735, 1507984, 1559560, 1637538, 1871472, 1884980, 1979229, 2183384, 2261976, 2339340, 2638972, 2729230, 2827470, 3119120, 3275076, 3298715, 3769960, 3958458, 4093845, 4366768, 4523952, 4678680, 5277944, 5458460, 5654940, 6550152, 6597430, 7539920, 7916916, 8187690, 9357360, 9896145, 10555888, 10916920, 11309880, 11969623, 13100304, 13194860, 15833832, 16375380, 19792290, 21833840, 22619760, 23939246, 26389720, 31667664, 32750760, 35908869, 39584580, 47878492, 52779440, 59848115, 65501520, 71817738, 79169160, 83787361, 95756984, 119696230, 143635476, 158338320, 167574722, 179544345, 191513968, 239392460, 251362083, 287270952, 335149444, 359088690, 418936805, 478784920, 502724166, 574541904, 670298888, 718177380, 837873610, 957569840, 1005448332, 1256810415, 1340597776, 1436354760, 1675747220, 2010896664, 2513620830, 2872709520, 3351494440, 4021793328, 5027241660, 6702988880, 10054483320, 20108966640]

約数ペア:

[(1, 20108966640), (2, 10054483320), (3, 6702988880), (4, 5027241660), (5, 4021793328), (6, 3351494440), (7, 2872709520), (8, 2513620830), (10, 2010896664), (12, 1675747220), (14, 1436354760), (15, 1340597776), (16, 1256810415), (20, 1005448332), (21, 957569840), (24, 837873610), (28, 718177380), (30, 670298888), (35, 574541904), (40, 502724166), (42, 478784920), (48, 418936805), (56, 359088690), (60, 335149444), (70, 287270952), (80, 251362083), (84, 239392460), (105, 191513968), (112, 179544345), (120, 167574722), (127, 158338320), (140, 143635476), (168, 119696230), (210, 95756984), (240, 83787361), (254, 79169160), (280, 71817738), (307, 65501520), (336, 59848115), (381, 52779440), (420, 47878492), (508, 39584580), (560, 35908869), (614, 32750760), (635, 31667664), (762, 26389720), (840, 23939246), (889, 22619760), (921, 21833840), (1016, 19792290), (1228, 16375380), (1270, 15833832), (1524, 13194860), (1535, 13100304), (1680, 11969623), (1778, 11309880), (1842, 10916920), (1905, 10555888), (2032, 9896145), (2149, 9357360), (2456, 8187690), (2540, 7916916), (2667, 7539920), (3048, 6597430), (3070, 6550152), (3556, 5654940), (3684, 5458460), (3810, 5277944), (4298, 4678680), (4445, 4523952), (4605, 4366768), (4912, 4093845), (5080, 3958458), (5334, 3769960), (6096, 3298715), (6140, 3275076), (6447, 3119120), (7112, 2827470), (7368, 2729230), (7620, 2638972), (8596, 2339340), (8890, 2261976), (9210, 2183384), (10160, 1979229), (10668, 1884980), (10745, 1871472), (12280, 1637538), (12894, 1559560), (13335, 1507984), (14224, 1413735), (14736, 1364615), (15240, 1319486), (17192, 1169670), (17780, 1130988), (18420, 1091692), (21336, 942490), (21490, 935736), (24560, 818769), (25788, 779780), (26670, 753992), (30480, 659743), (32235, 623824), (34384, 584835), (35560, 565494), (36840, 545846), (38989, 515760), (42672, 471245), (42980, 467868), (51576, 389890), (53340, 376996), (64470, 311912), (71120, 282747), (73680, 272923), (77978, 257880), (85960, 233934), (94249, 213360), (103152, 194945), (106680, 188498), (116967, 171920), (128940, 155956)]