21832720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2999}}^1$

素因数の和:3032

約数の個数: 80

約数和(自身を含む): 62496000

約数和(自身を除く): 40663280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2999, 3640, 5998, 7280, 11996, 14995, 20993, 23992, 29990, 38987, 41986, 47984, 59980, 77974, 83972, 104965, 119960, 155948, 167944, 194935, 209930, 239920, 272909, 311896, 335888, 389870, 419860, 545818, 623792, 779740, 839720, 1091636, 1364545, 1559480, 1679440, 2183272, 2729090, 3118960, 4366544, 5458180, 10916360, 21832720]

約数ペア:

[(1, 21832720), (2, 10916360), (4, 5458180), (5, 4366544), (7, 3118960), (8, 2729090), (10, 2183272), (13, 1679440), (14, 1559480), (16, 1364545), (20, 1091636), (26, 839720), (28, 779740), (35, 623792), (40, 545818), (52, 419860), (56, 389870), (65, 335888), (70, 311896), (80, 272909), (91, 239920), (104, 209930), (112, 194935), (130, 167944), (140, 155948), (182, 119960), (208, 104965), (260, 83972), (280, 77974), (364, 59980), (455, 47984), (520, 41986), (560, 38987), (728, 29990), (910, 23992), (1040, 20993), (1456, 14995), (1820, 11996), (2999, 7280), (3640, 5998)]