81640440

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{10799}}^1$

素因数の和:10826

約数の個数: 128

約数和(自身を含む): 311040000

約数和(自身を除く): 229399560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 10799, 21598, 32397, 43196, 53995, 64794, 75593, 86392, 97191, 107990, 129588, 151186, 161985, 194382, 215980, 226779, 259176, 291573, 302372, 323970, 377965, 388764, 431960, 453558, 485955, 583146, 604744, 647940, 680337, 755930, 777528, 907116, 971910, 1133895, 1166292, 1295880, 1360674, 1457865, 1511860, 1814232, 1943820, 2041011, 2267790, 2332584, 2721348, 2915730, 3023720, 3401685, 3887640, 4082022, 4535580, 5442696, 5831460, 6803370, 8164044, 9071160, 10205055, 11662920, 13606740, 16328088, 20410110, 27213480, 40820220, 81640440]

約数ペア:

[(1, 81640440), (2, 40820220), (3, 27213480), (4, 20410110), (5, 16328088), (6, 13606740), (7, 11662920), (8, 10205055), (9, 9071160), (10, 8164044), (12, 6803370), (14, 5831460), (15, 5442696), (18, 4535580), (20, 4082022), (21, 3887640), (24, 3401685), (27, 3023720), (28, 2915730), (30, 2721348), (35, 2332584), (36, 2267790), (40, 2041011), (42, 1943820), (45, 1814232), (54, 1511860), (56, 1457865), (60, 1360674), (63, 1295880), (70, 1166292), (72, 1133895), (84, 971910), (90, 907116), (105, 777528), (108, 755930), (120, 680337), (126, 647940), (135, 604744), (140, 583146), (168, 485955), (180, 453558), (189, 431960), (210, 388764), (216, 377965), (252, 323970), (270, 302372), (280, 291573), (315, 259176), (360, 226779), (378, 215980), (420, 194382), (504, 161985), (540, 151186), (630, 129588), (756, 107990), (840, 97191), (945, 86392), (1080, 75593), (1260, 64794), (1512, 53995), (1890, 43196), (2520, 32397), (3780, 21598), (7560, 10799)]