68407920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^3\times {\mathrm{277}}^1$

素因数の和:317

約数の個数: 240

約数和(自身を含む): 268881600

約数和(自身を除く): 200473680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 277, 280, 294, 315, 336, 343, 360, 392, 420, 441, 490, 504, 554, 560, 588, 630, 686, 720, 735, 784, 831, 840, 882, 980, 1008, 1029, 1108, 1176, 1260, 1372, 1385, 1470, 1662, 1680, 1715, 1764, 1939, 1960, 2058, 2205, 2216, 2352, 2493, 2520, 2744, 2770, 2940, 3087, 3324, 3430, 3528, 3878, 3920, 4116, 4155, 4410, 4432, 4986, 5040, 5145, 5488, 5540, 5817, 5880, 6174, 6648, 6860, 7056, 7756, 8232, 8310, 8820, 9695, 9972, 10290, 11080, 11634, 11760, 12348, 12465, 13296, 13573, 13720, 15435, 15512, 16464, 16620, 17451, 17640, 19390, 19944, 20580, 22160, 23268, 24696, 24930, 27146, 27440, 29085, 30870, 31024, 33240, 34902, 35280, 38780, 39888, 40719, 41160, 46536, 49392, 49860, 54292, 58170, 61740, 66480, 67865, 69804, 77560, 81438, 82320, 87255, 93072, 95011, 99720, 108584, 116340, 122157, 123480, 135730, 139608, 155120, 162876, 174510, 190022, 199440, 203595, 217168, 232680, 244314, 246960, 271460, 279216, 285033, 325752, 349020, 380044, 407190, 465360, 475055, 488628, 542920, 570066, 610785, 651504, 698040, 760088, 814380, 855099, 950110, 977256, 1085840, 1140132, 1221570, 1396080, 1425165, 1520176, 1628760, 1710198, 1900220, 1954512, 2280264, 2443140, 2850330, 3257520, 3420396, 3800440, 4275495, 4560528, 4886280, 5700660, 6840792, 7600880, 8550990, 9772560, 11401320, 13681584, 17101980, 22802640, 34203960, 68407920]

約数ペア:

[(1, 68407920), (2, 34203960), (3, 22802640), (4, 17101980), (5, 13681584), (6, 11401320), (7, 9772560), (8, 8550990), (9, 7600880), (10, 6840792), (12, 5700660), (14, 4886280), (15, 4560528), (16, 4275495), (18, 3800440), (20, 3420396), (21, 3257520), (24, 2850330), (28, 2443140), (30, 2280264), (35, 1954512), (36, 1900220), (40, 1710198), (42, 1628760), (45, 1520176), (48, 1425165), (49, 1396080), (56, 1221570), (60, 1140132), (63, 1085840), (70, 977256), (72, 950110), (80, 855099), (84, 814380), (90, 760088), (98, 698040), (105, 651504), (112, 610785), (120, 570066), (126, 542920), (140, 488628), (144, 475055), (147, 465360), (168, 407190), (180, 380044), (196, 349020), (210, 325752), (240, 285033), (245, 279216), (252, 271460), (277, 246960), (280, 244314), (294, 232680), (315, 217168), (336, 203595), (343, 199440), (360, 190022), (392, 174510), (420, 162876), (441, 155120), (490, 139608), (504, 135730), (554, 123480), (560, 122157), (588, 116340), (630, 108584), (686, 99720), (720, 95011), (735, 93072), (784, 87255), (831, 82320), (840, 81438), (882, 77560), (980, 69804), (1008, 67865), (1029, 66480), (1108, 61740), (1176, 58170), (1260, 54292), (1372, 49860), (1385, 49392), (1470, 46536), (1662, 41160), (1680, 40719), (1715, 39888), (1764, 38780), (1939, 35280), (1960, 34902), (2058, 33240), (2205, 31024), (2216, 30870), (2352, 29085), (2493, 27440), (2520, 27146), (2744, 24930), (2770, 24696), (2940, 23268), (3087, 22160), (3324, 20580), (3430, 19944), (3528, 19390), (3878, 17640), (3920, 17451), (4116, 16620), (4155, 16464), (4410, 15512), (4432, 15435), (4986, 13720), (5040, 13573), (5145, 13296), (5488, 12465), (5540, 12348), (5817, 11760), (5880, 11634), (6174, 11080), (6648, 10290), (6860, 9972), (7056, 9695), (7756, 8820), (8232, 8310)]