285928720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:406

約数の個数: 240

約数和(自身を含む): 890568000

約数和(自身を除く): 604639280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 35, 38, 40, 44, 49, 55, 56, 70, 76, 77, 80, 88, 95, 98, 110, 112, 133, 140, 152, 154, 176, 190, 196, 209, 220, 245, 266, 280, 304, 308, 349, 380, 385, 392, 418, 440, 490, 532, 539, 560, 616, 665, 698, 760, 770, 784, 836, 880, 931, 980, 1045, 1064, 1078, 1232, 1330, 1396, 1463, 1520, 1540, 1672, 1745, 1862, 1960, 2090, 2128, 2156, 2443, 2660, 2695, 2792, 2926, 3080, 3344, 3490, 3724, 3839, 3920, 4180, 4312, 4655, 4886, 5320, 5390, 5584, 5852, 6160, 6631, 6980, 7315, 7448, 7678, 8360, 8624, 9310, 9772, 10241, 10640, 10780, 11704, 12215, 13262, 13960, 14630, 14896, 15356, 16720, 17101, 18620, 19195, 19544, 20482, 21560, 23408, 24430, 26524, 26873, 27920, 29260, 30712, 33155, 34202, 37240, 38390, 39088, 40964, 43120, 46417, 48860, 51205, 53048, 53746, 58520, 61424, 66310, 68404, 72941, 74480, 76780, 81928, 85505, 92834, 97720, 102410, 106096, 107492, 117040, 132620, 134365, 136808, 145882, 153560, 163856, 171010, 185668, 188111, 195440, 204820, 214984, 232085, 265240, 268730, 273616, 291764, 307120, 324919, 342020, 364705, 371336, 376222, 409640, 429968, 464170, 510587, 530480, 537460, 583528, 649838, 684040, 729410, 742672, 752444, 819280, 928340, 940555, 1021174, 1074920, 1167056, 1299676, 1368080, 1458820, 1504888, 1624595, 1856680, 1881110, 2042348, 2149840, 2552935, 2599352, 2917640, 3009776, 3249190, 3574109, 3713360, 3762220, 4084696, 5105870, 5198704, 5835280, 6498380, 7148218, 7524440, 8169392, 10211740, 12996760, 14296436, 15048880, 17870545, 20423480, 25993520, 28592872, 35741090, 40846960, 57185744, 71482180, 142964360, 285928720]

約数ペア:

[(1, 285928720), (2, 142964360), (4, 71482180), (5, 57185744), (7, 40846960), (8, 35741090), (10, 28592872), (11, 25993520), (14, 20423480), (16, 17870545), (19, 15048880), (20, 14296436), (22, 12996760), (28, 10211740), (35, 8169392), (38, 7524440), (40, 7148218), (44, 6498380), (49, 5835280), (55, 5198704), (56, 5105870), (70, 4084696), (76, 3762220), (77, 3713360), (80, 3574109), (88, 3249190), (95, 3009776), (98, 2917640), (110, 2599352), (112, 2552935), (133, 2149840), (140, 2042348), (152, 1881110), (154, 1856680), (176, 1624595), (190, 1504888), (196, 1458820), (209, 1368080), (220, 1299676), (245, 1167056), (266, 1074920), (280, 1021174), (304, 940555), (308, 928340), (349, 819280), (380, 752444), (385, 742672), (392, 729410), (418, 684040), (440, 649838), (490, 583528), (532, 537460), (539, 530480), (560, 510587), (616, 464170), (665, 429968), (698, 409640), (760, 376222), (770, 371336), (784, 364705), (836, 342020), (880, 324919), (931, 307120), (980, 291764), (1045, 273616), (1064, 268730), (1078, 265240), (1232, 232085), (1330, 214984), (1396, 204820), (1463, 195440), (1520, 188111), (1540, 185668), (1672, 171010), (1745, 163856), (1862, 153560), (1960, 145882), (2090, 136808), (2128, 134365), (2156, 132620), (2443, 117040), (2660, 107492), (2695, 106096), (2792, 102410), (2926, 97720), (3080, 92834), (3344, 85505), (3490, 81928), (3724, 76780), (3839, 74480), (3920, 72941), (4180, 68404), (4312, 66310), (4655, 61424), (4886, 58520), (5320, 53746), (5390, 53048), (5584, 51205), (5852, 48860), (6160, 46417), (6631, 43120), (6980, 40964), (7315, 39088), (7448, 38390), (7678, 37240), (8360, 34202), (8624, 33155), (9310, 30712), (9772, 29260), (10241, 27920), (10640, 26873), (10780, 26524), (11704, 24430), (12215, 23408), (13262, 21560), (13960, 20482), (14630, 19544), (14896, 19195), (15356, 18620), (16720, 17101)]