256704552

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1045

約数の個数: 160

約数和(自身を含む): 800110080

約数和(自身を除く): 543405528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 31, 36, 39, 52, 54, 62, 72, 78, 81, 93, 104, 108, 117, 124, 156, 162, 186, 216, 234, 248, 279, 312, 324, 351, 372, 403, 468, 558, 648, 702, 744, 806, 837, 936, 983, 1053, 1116, 1209, 1404, 1612, 1674, 1966, 2106, 2232, 2418, 2511, 2808, 2949, 3224, 3348, 3627, 3932, 4212, 4836, 5022, 5898, 6696, 7254, 7864, 8424, 8847, 9672, 10044, 10881, 11796, 12779, 14508, 17694, 20088, 21762, 23592, 25558, 26541, 29016, 30473, 32643, 35388, 38337, 43524, 51116, 53082, 60946, 65286, 70776, 76674, 79623, 87048, 91419, 102232, 106164, 115011, 121892, 130572, 153348, 159246, 182838, 212328, 230022, 243784, 261144, 274257, 306696, 318492, 345033, 365676, 396149, 460044, 548514, 636984, 690066, 731352, 792298, 822771, 920088, 1035099, 1097028, 1188447, 1380132, 1584596, 1645542, 2070198, 2194056, 2376894, 2468313, 2760264, 3169192, 3291084, 3565341, 4140396, 4753788, 4936626, 6582168, 7130682, 8280792, 9507576, 9873252, 10696023, 14261364, 19746504, 21392046, 28522728, 32088069, 42784092, 64176138, 85568184, 128352276, 256704552]

約数ペア:

[(1, 256704552), (2, 128352276), (3, 85568184), (4, 64176138), (6, 42784092), (8, 32088069), (9, 28522728), (12, 21392046), (13, 19746504), (18, 14261364), (24, 10696023), (26, 9873252), (27, 9507576), (31, 8280792), (36, 7130682), (39, 6582168), (52, 4936626), (54, 4753788), (62, 4140396), (72, 3565341), (78, 3291084), (81, 3169192), (93, 2760264), (104, 2468313), (108, 2376894), (117, 2194056), (124, 2070198), (156, 1645542), (162, 1584596), (186, 1380132), (216, 1188447), (234, 1097028), (248, 1035099), (279, 920088), (312, 822771), (324, 792298), (351, 731352), (372, 690066), (403, 636984), (468, 548514), (558, 460044), (648, 396149), (702, 365676), (744, 345033), (806, 318492), (837, 306696), (936, 274257), (983, 261144), (1053, 243784), (1116, 230022), (1209, 212328), (1404, 182838), (1612, 159246), (1674, 153348), (1966, 130572), (2106, 121892), (2232, 115011), (2418, 106164), (2511, 102232), (2808, 91419), (2949, 87048), (3224, 79623), (3348, 76674), (3627, 70776), (3932, 65286), (4212, 60946), (4836, 53082), (5022, 51116), (5898, 43524), (6696, 38337), (7254, 35388), (7864, 32643), (8424, 30473), (8847, 29016), (9672, 26541), (10044, 25558), (10881, 23592), (11796, 21762), (12779, 20088), (14508, 17694)]