81245340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1109}}^1$

素因数の和:1172

約数の個数: 144

約数和(自身を含む): 276363360

約数和(自身を除く): 195118020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 37, 44, 45, 55, 60, 66, 74, 90, 99, 110, 111, 132, 148, 165, 180, 185, 198, 220, 222, 330, 333, 370, 396, 407, 444, 495, 555, 660, 666, 740, 814, 990, 1109, 1110, 1221, 1332, 1628, 1665, 1980, 2035, 2218, 2220, 2442, 3327, 3330, 3663, 4070, 4436, 4884, 5545, 6105, 6654, 6660, 7326, 8140, 9981, 11090, 12199, 12210, 13308, 14652, 16635, 18315, 19962, 22180, 24398, 24420, 33270, 36597, 36630, 39924, 41033, 48796, 49905, 60995, 66540, 73194, 73260, 82066, 99810, 109791, 121990, 123099, 146388, 164132, 182985, 199620, 205165, 219582, 243980, 246198, 365970, 369297, 410330, 439164, 451363, 492396, 548955, 615495, 731940, 738594, 820660, 902726, 1097910, 1230990, 1354089, 1477188, 1805452, 1846485, 2195820, 2256815, 2461980, 2708178, 3692970, 4062267, 4513630, 5416356, 6770445, 7385940, 8124534, 9027260, 13540890, 16249068, 20311335, 27081780, 40622670, 81245340]

約数ペア:

[(1, 81245340), (2, 40622670), (3, 27081780), (4, 20311335), (5, 16249068), (6, 13540890), (9, 9027260), (10, 8124534), (11, 7385940), (12, 6770445), (15, 5416356), (18, 4513630), (20, 4062267), (22, 3692970), (30, 2708178), (33, 2461980), (36, 2256815), (37, 2195820), (44, 1846485), (45, 1805452), (55, 1477188), (60, 1354089), (66, 1230990), (74, 1097910), (90, 902726), (99, 820660), (110, 738594), (111, 731940), (132, 615495), (148, 548955), (165, 492396), (180, 451363), (185, 439164), (198, 410330), (220, 369297), (222, 365970), (330, 246198), (333, 243980), (370, 219582), (396, 205165), (407, 199620), (444, 182985), (495, 164132), (555, 146388), (660, 123099), (666, 121990), (740, 109791), (814, 99810), (990, 82066), (1109, 73260), (1110, 73194), (1221, 66540), (1332, 60995), (1628, 49905), (1665, 48796), (1980, 41033), (2035, 39924), (2218, 36630), (2220, 36597), (2442, 33270), (3327, 24420), (3330, 24398), (3663, 22180), (4070, 19962), (4436, 18315), (4884, 16635), (5545, 14652), (6105, 13308), (6654, 12210), (6660, 12199), (7326, 11090), (8140, 9981)]