31487940

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 288

約数和(自身を含む): 117411840

約数和(自身を除く): 85923900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 27, 30, 31, 33, 36, 38, 44, 45, 54, 55, 57, 60, 62, 66, 76, 81, 90, 93, 95, 99, 108, 110, 114, 124, 132, 135, 155, 162, 165, 171, 180, 186, 190, 198, 209, 220, 228, 243, 270, 279, 285, 297, 310, 324, 330, 341, 342, 372, 380, 396, 405, 418, 465, 486, 495, 513, 540, 558, 570, 589, 594, 620, 627, 660, 682, 684, 810, 836, 837, 855, 891, 930, 972, 990, 1023, 1026, 1045, 1116, 1140, 1178, 1188, 1215, 1254, 1364, 1395, 1485, 1539, 1620, 1674, 1705, 1710, 1767, 1782, 1860, 1881, 1980, 2046, 2052, 2090, 2356, 2430, 2508, 2511, 2565, 2673, 2790, 2945, 2970, 3069, 3078, 3135, 3348, 3410, 3420, 3534, 3564, 3762, 4092, 4180, 4185, 4455, 4617, 4860, 5022, 5115, 5130, 5301, 5346, 5580, 5643, 5890, 5940, 6138, 6156, 6270, 6479, 6820, 7068, 7524, 7533, 7695, 8370, 8835, 8910, 9207, 9234, 9405, 10044, 10230, 10260, 10602, 10692, 11286, 11780, 12276, 12540, 12555, 12958, 13365, 15066, 15345, 15390, 15903, 16740, 16929, 17670, 17820, 18414, 18468, 18810, 19437, 20460, 21204, 22572, 23085, 25110, 25916, 26505, 26730, 27621, 28215, 30132, 30690, 30780, 31806, 32395, 33858, 35340, 36828, 37620, 37665, 38874, 46035, 46170, 47709, 50220, 50787, 53010, 53460, 55242, 56430, 58311, 61380, 63612, 64790, 67716, 75330, 77748, 79515, 82863, 84645, 92070, 92340, 95418, 97185, 101574, 106020, 110484, 112860, 116622, 129580, 138105, 143127, 150660, 159030, 165726, 169290, 174933, 184140, 190836, 194370, 203148, 233244, 238545, 253935, 276210, 286254, 291555, 318060, 331452, 338580, 349866, 388740, 414315, 477090, 507870, 524799, 552420, 572508, 583110, 699732, 715635, 828630, 874665, 954180, 1015740, 1049598, 1166220, 1431270, 1574397, 1657260, 1749330, 2099196, 2623995, 2862540, 3148794, 3498660, 5247990, 6297588, 7871985, 10495980, 15743970, 31487940]

約数ペア:

[(1, 31487940), (2, 15743970), (3, 10495980), (4, 7871985), (5, 6297588), (6, 5247990), (9, 3498660), (10, 3148794), (11, 2862540), (12, 2623995), (15, 2099196), (18, 1749330), (19, 1657260), (20, 1574397), (22, 1431270), (27, 1166220), (30, 1049598), (31, 1015740), (33, 954180), (36, 874665), (38, 828630), (44, 715635), (45, 699732), (54, 583110), (55, 572508), (57, 552420), (60, 524799), (62, 507870), (66, 477090), (76, 414315), (81, 388740), (90, 349866), (93, 338580), (95, 331452), (99, 318060), (108, 291555), (110, 286254), (114, 276210), (124, 253935), (132, 238545), (135, 233244), (155, 203148), (162, 194370), (165, 190836), (171, 184140), (180, 174933), (186, 169290), (190, 165726), (198, 159030), (209, 150660), (220, 143127), (228, 138105), (243, 129580), (270, 116622), (279, 112860), (285, 110484), (297, 106020), (310, 101574), (324, 97185), (330, 95418), (341, 92340), (342, 92070), (372, 84645), (380, 82863), (396, 79515), (405, 77748), (418, 75330), (465, 67716), (486, 64790), (495, 63612), (513, 61380), (540, 58311), (558, 56430), (570, 55242), (589, 53460), (594, 53010), (620, 50787), (627, 50220), (660, 47709), (682, 46170), (684, 46035), (810, 38874), (836, 37665), (837, 37620), (855, 36828), (891, 35340), (930, 33858), (972, 32395), (990, 31806), (1023, 30780), (1026, 30690), (1045, 30132), (1116, 28215), (1140, 27621), (1178, 26730), (1188, 26505), (1215, 25916), (1254, 25110), (1364, 23085), (1395, 22572), (1485, 21204), (1539, 20460), (1620, 19437), (1674, 18810), (1705, 18468), (1710, 18414), (1767, 17820), (1782, 17670), (1860, 16929), (1881, 16740), (1980, 15903), (2046, 15390), (2052, 15345), (2090, 15066), (2356, 13365), (2430, 12958), (2508, 12555), (2511, 12540), (2565, 12276), (2673, 11780), (2790, 11286), (2945, 10692), (2970, 10602), (3069, 10260), (3078, 10230), (3135, 10044), (3348, 9405), (3410, 9234), (3420, 9207), (3534, 8910), (3564, 8835), (3762, 8370), (4092, 7695), (4180, 7533), (4185, 7524), (4455, 7068), (4617, 6820), (4860, 6479), (5022, 6270), (5115, 6156), (5130, 6138), (5301, 5940), (5346, 5890), (5580, 5643)]