311900238

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:175

約数の個数: 144

約数和(自身を含む): 802423440

約数和(自身を除く): 490523202

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 31, 38, 39, 57, 62, 73, 78, 93, 114, 117, 146, 171, 186, 219, 234, 247, 279, 342, 403, 438, 494, 558, 589, 657, 741, 806, 949, 961, 1178, 1209, 1314, 1387, 1482, 1767, 1898, 1922, 2223, 2263, 2418, 2774, 2847, 2883, 3534, 3627, 4161, 4446, 4526, 5301, 5694, 5766, 6789, 7254, 7657, 8322, 8541, 8649, 10602, 12483, 12493, 13578, 15314, 17082, 17298, 18031, 18259, 20367, 22971, 24966, 24986, 29419, 36062, 36518, 37479, 40734, 42997, 45942, 54093, 54777, 58838, 68913, 70153, 74958, 85994, 88257, 108186, 109554, 112437, 128991, 137826, 140306, 162279, 164331, 176514, 210459, 224874, 237367, 257982, 264771, 324558, 328662, 386973, 420918, 474734, 529542, 558961, 631377, 712101, 773946, 911989, 1117922, 1262754, 1332907, 1424202, 1676883, 1823978, 2136303, 2665814, 2735967, 3353766, 3998721, 4272606, 5030649, 5471934, 7997442, 8207901, 10061298, 11996163, 16415802, 17327791, 23992326, 34655582, 51983373, 103966746, 155950119, 311900238]

約数ペア:

[(1, 311900238), (2, 155950119), (3, 103966746), (6, 51983373), (9, 34655582), (13, 23992326), (18, 17327791), (19, 16415802), (26, 11996163), (31, 10061298), (38, 8207901), (39, 7997442), (57, 5471934), (62, 5030649), (73, 4272606), (78, 3998721), (93, 3353766), (114, 2735967), (117, 2665814), (146, 2136303), (171, 1823978), (186, 1676883), (219, 1424202), (234, 1332907), (247, 1262754), (279, 1117922), (342, 911989), (403, 773946), (438, 712101), (494, 631377), (558, 558961), (589, 529542), (657, 474734), (741, 420918), (806, 386973), (949, 328662), (961, 324558), (1178, 264771), (1209, 257982), (1314, 237367), (1387, 224874), (1482, 210459), (1767, 176514), (1898, 164331), (1922, 162279), (2223, 140306), (2263, 137826), (2418, 128991), (2774, 112437), (2847, 109554), (2883, 108186), (3534, 88257), (3627, 85994), (4161, 74958), (4446, 70153), (4526, 68913), (5301, 58838), (5694, 54777), (5766, 54093), (6789, 45942), (7254, 42997), (7657, 40734), (8322, 37479), (8541, 36518), (8649, 36062), (10602, 29419), (12483, 24986), (12493, 24966), (13578, 22971), (15314, 20367), (17082, 18259), (17298, 18031)]