81323520

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{10589}}^1$

素因数の和:10615

約数の個数: 80

約数和(自身を含む): 260005680

約数和(自身を除く): 178682160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680, 10589, 21178, 31767, 42356, 52945, 63534, 84712, 105890, 127068, 158835, 169424, 211780, 254136, 317670, 338848, 423560, 508272, 635340, 677696, 847120, 1016544, 1270680, 1355392, 1694240, 2033088, 2541360, 2710784, 3388480, 4066176, 5082720, 5421568, 6776960, 8132352, 10165440, 13553920, 16264704, 20330880, 27107840, 40661760, 81323520]

約数ペア:

[(1, 81323520), (2, 40661760), (3, 27107840), (4, 20330880), (5, 16264704), (6, 13553920), (8, 10165440), (10, 8132352), (12, 6776960), (15, 5421568), (16, 5082720), (20, 4066176), (24, 3388480), (30, 2710784), (32, 2541360), (40, 2033088), (48, 1694240), (60, 1355392), (64, 1270680), (80, 1016544), (96, 847120), (120, 677696), (128, 635340), (160, 508272), (192, 423560), (240, 338848), (256, 317670), (320, 254136), (384, 211780), (480, 169424), (512, 158835), (640, 127068), (768, 105890), (960, 84712), (1280, 63534), (1536, 52945), (1920, 42356), (2560, 31767), (3840, 21178), (7680, 10589)]