1999490080

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:512

約数の個数: 288

約数和(自身を含む): 5984616960

約数和(自身を除く): 3985126880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 49, 56, 62, 70, 76, 80, 95, 98, 112, 124, 133, 140, 152, 155, 160, 190, 196, 217, 224, 245, 248, 266, 280, 304, 310, 380, 392, 433, 434, 490, 496, 532, 560, 589, 608, 620, 665, 760, 784, 866, 868, 931, 980, 992, 1064, 1085, 1120, 1178, 1240, 1330, 1519, 1520, 1568, 1732, 1736, 1862, 1960, 2128, 2165, 2170, 2356, 2480, 2660, 2945, 3031, 3038, 3040, 3464, 3472, 3724, 3920, 4123, 4256, 4330, 4340, 4655, 4712, 4960, 5320, 5890, 6062, 6076, 6928, 6944, 7448, 7595, 7840, 8227, 8246, 8660, 8680, 9310, 9424, 10640, 11780, 12124, 12152, 13423, 13856, 14896, 15155, 15190, 16454, 16492, 17320, 17360, 18620, 18848, 20615, 21217, 21280, 23560, 24248, 24304, 26846, 28861, 29792, 30310, 30380, 32908, 32984, 34640, 34720, 37240, 41135, 41230, 42434, 47120, 48496, 48608, 53692, 57589, 57722, 60620, 60760, 65816, 65968, 67115, 69280, 74480, 82270, 82460, 84868, 93961, 94240, 96992, 106085, 107384, 115178, 115444, 121240, 121520, 131632, 131936, 134230, 144305, 148960, 164540, 164920, 169736, 187922, 212170, 214768, 230356, 230888, 242480, 243040, 255037, 263264, 268460, 287945, 288610, 329080, 329840, 339472, 375844, 403123, 424340, 429536, 460712, 461776, 469805, 484960, 510074, 536920, 575890, 577220, 657727, 658160, 659680, 678944, 751688, 806246, 848680, 921424, 923552, 939610, 1020148, 1073840, 1151780, 1154440, 1275185, 1315454, 1316320, 1503376, 1612492, 1697360, 1785259, 1842848, 1879220, 2015615, 2040296, 2147680, 2303560, 2308880, 2550370, 2630908, 3006752, 3224984, 3288635, 3394720, 3570518, 3758440, 4031230, 4080592, 4607120, 4617760, 5100740, 5261816, 6449968, 6577270, 7141036, 7516880, 8062460, 8161184, 8926295, 9214240, 10201480, 10523632, 12496813, 12899936, 13154540, 14282072, 15033760, 16124920, 17852590, 20402960, 21047264, 24993626, 26309080, 28564144, 32249840, 35705180, 40805920, 49987252, 52618160, 57128288, 62484065, 64499680, 71410360, 99974504, 105236320, 124968130, 142820720, 199949008, 249936260, 285641440, 399898016, 499872520, 999745040, 1999490080]

約数ペア:

[(1, 1999490080), (2, 999745040), (4, 499872520), (5, 399898016), (7, 285641440), (8, 249936260), (10, 199949008), (14, 142820720), (16, 124968130), (19, 105236320), (20, 99974504), (28, 71410360), (31, 64499680), (32, 62484065), (35, 57128288), (38, 52618160), (40, 49987252), (49, 40805920), (56, 35705180), (62, 32249840), (70, 28564144), (76, 26309080), (80, 24993626), (95, 21047264), (98, 20402960), (112, 17852590), (124, 16124920), (133, 15033760), (140, 14282072), (152, 13154540), (155, 12899936), (160, 12496813), (190, 10523632), (196, 10201480), (217, 9214240), (224, 8926295), (245, 8161184), (248, 8062460), (266, 7516880), (280, 7141036), (304, 6577270), (310, 6449968), (380, 5261816), (392, 5100740), (433, 4617760), (434, 4607120), (490, 4080592), (496, 4031230), (532, 3758440), (560, 3570518), (589, 3394720), (608, 3288635), (620, 3224984), (665, 3006752), (760, 2630908), (784, 2550370), (866, 2308880), (868, 2303560), (931, 2147680), (980, 2040296), (992, 2015615), (1064, 1879220), (1085, 1842848), (1120, 1785259), (1178, 1697360), (1240, 1612492), (1330, 1503376), (1519, 1316320), (1520, 1315454), (1568, 1275185), (1732, 1154440), (1736, 1151780), (1862, 1073840), (1960, 1020148), (2128, 939610), (2165, 923552), (2170, 921424), (2356, 848680), (2480, 806246), (2660, 751688), (2945, 678944), (3031, 659680), (3038, 658160), (3040, 657727), (3464, 577220), (3472, 575890), (3724, 536920), (3920, 510074), (4123, 484960), (4256, 469805), (4330, 461776), (4340, 460712), (4655, 429536), (4712, 424340), (4960, 403123), (5320, 375844), (5890, 339472), (6062, 329840), (6076, 329080), (6928, 288610), (6944, 287945), (7448, 268460), (7595, 263264), (7840, 255037), (8227, 243040), (8246, 242480), (8660, 230888), (8680, 230356), (9310, 214768), (9424, 212170), (10640, 187922), (11780, 169736), (12124, 164920), (12152, 164540), (13423, 148960), (13856, 144305), (14896, 134230), (15155, 131936), (15190, 131632), (16454, 121520), (16492, 121240), (17320, 115444), (17360, 115178), (18620, 107384), (18848, 106085), (20615, 96992), (21217, 94240), (21280, 93961), (23560, 84868), (24248, 82460), (24304, 82270), (26846, 74480), (28861, 69280), (29792, 67115), (30310, 65968), (30380, 65816), (32908, 60760), (32984, 60620), (34640, 57722), (34720, 57589), (37240, 53692), (41135, 48608), (41230, 48496), (42434, 47120)]