81620784

素因数分解:

$2^4\times 3^5\times 7^1\times {\mathrm{2999}}^1$

素因数の和:3029

約数の個数: 120

約数和(自身を含む): 270816000

約数和(自身を除く): 189195216

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 81, 84, 108, 112, 126, 144, 162, 168, 189, 216, 243, 252, 324, 336, 378, 432, 486, 504, 567, 648, 756, 972, 1008, 1134, 1296, 1512, 1701, 1944, 2268, 2999, 3024, 3402, 3888, 4536, 5998, 6804, 8997, 9072, 11996, 13608, 17994, 20993, 23992, 26991, 27216, 35988, 41986, 47984, 53982, 62979, 71976, 80973, 83972, 107964, 125958, 143952, 161946, 167944, 188937, 215928, 242919, 251916, 323892, 335888, 377874, 431856, 485838, 503832, 566811, 647784, 728757, 755748, 971676, 1007664, 1133622, 1295568, 1457514, 1511496, 1700433, 1943352, 2267244, 2915028, 3022992, 3400866, 3886704, 4534488, 5101299, 5830056, 6801732, 9068976, 10202598, 11660112, 13603464, 20405196, 27206928, 40810392, 81620784]

約数ペア:

[(1, 81620784), (2, 40810392), (3, 27206928), (4, 20405196), (6, 13603464), (7, 11660112), (8, 10202598), (9, 9068976), (12, 6801732), (14, 5830056), (16, 5101299), (18, 4534488), (21, 3886704), (24, 3400866), (27, 3022992), (28, 2915028), (36, 2267244), (42, 1943352), (48, 1700433), (54, 1511496), (56, 1457514), (63, 1295568), (72, 1133622), (81, 1007664), (84, 971676), (108, 755748), (112, 728757), (126, 647784), (144, 566811), (162, 503832), (168, 485838), (189, 431856), (216, 377874), (243, 335888), (252, 323892), (324, 251916), (336, 242919), (378, 215928), (432, 188937), (486, 167944), (504, 161946), (567, 143952), (648, 125958), (756, 107964), (972, 83972), (1008, 80973), (1134, 71976), (1296, 62979), (1512, 53982), (1701, 47984), (1944, 41986), (2268, 35988), (2999, 27216), (3024, 26991), (3402, 23992), (3888, 20993), (4536, 17994), (5998, 13608), (6804, 11996), (8997, 9072)]