21049461760

素因数分解:

$2^{10}\times 5^1\times {\mathrm{1439}}^1\times {\mathrm{2857}}^1$

素因数の和:4321

約数の個数: 88

約数和(自身を含む): 50546816640

約数和(自身を除く): 29497354880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1439, 2560, 2857, 2878, 5120, 5714, 5756, 7195, 11428, 11512, 14285, 14390, 22856, 23024, 28570, 28780, 45712, 46048, 57140, 57560, 91424, 92096, 114280, 115120, 182848, 184192, 228560, 230240, 365696, 368384, 457120, 460480, 731392, 736768, 914240, 920960, 1462784, 1473536, 1828480, 1841920, 2925568, 3656960, 3683840, 4111223, 7313920, 7367680, 8222446, 14627840, 16444892, 20556115, 32889784, 41112230, 65779568, 82224460, 131559136, 164448920, 263118272, 328897840, 526236544, 657795680, 1052473088, 1315591360, 2104946176, 2631182720, 4209892352, 5262365440, 10524730880, 21049461760]

約数ペア:

[(1, 21049461760), (2, 10524730880), (4, 5262365440), (5, 4209892352), (8, 2631182720), (10, 2104946176), (16, 1315591360), (20, 1052473088), (32, 657795680), (40, 526236544), (64, 328897840), (80, 263118272), (128, 164448920), (160, 131559136), (256, 82224460), (320, 65779568), (512, 41112230), (640, 32889784), (1024, 20556115), (1280, 16444892), (1439, 14627840), (2560, 8222446), (2857, 7367680), (2878, 7313920), (5120, 4111223), (5714, 3683840), (5756, 3656960), (7195, 2925568), (11428, 1841920), (11512, 1828480), (14285, 1473536), (14390, 1462784), (22856, 920960), (23024, 914240), (28570, 736768), (28780, 731392), (45712, 460480), (46048, 457120), (57140, 368384), (57560, 365696), (91424, 230240), (92096, 228560), (114280, 184192), (115120, 182848)]