81205105920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{21147163}}^1$

素因数の和:21147187

約数の個数: 72

約数和(自身を含む): 259348819296

約数和(自身を除く): 178143713376

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, 640, 768, 960, 1280, 1920, 3840, 21147163, 42294326, 63441489, 84588652, 105735815, 126882978, 169177304, 211471630, 253765956, 317207445, 338354608, 422943260, 507531912, 634414890, 676709216, 845886520, 1015063824, 1268829780, 1353418432, 1691773040, 2030127648, 2537659560, 2706836864, 3383546080, 4060255296, 5075319120, 5413673728, 6767092160, 8120510592, 10150638240, 13534184320, 16241021184, 20301276480, 27068368640, 40602552960, 81205105920]

約数ペア:

[(1, 81205105920), (2, 40602552960), (3, 27068368640), (4, 20301276480), (5, 16241021184), (6, 13534184320), (8, 10150638240), (10, 8120510592), (12, 6767092160), (15, 5413673728), (16, 5075319120), (20, 4060255296), (24, 3383546080), (30, 2706836864), (32, 2537659560), (40, 2030127648), (48, 1691773040), (60, 1353418432), (64, 1268829780), (80, 1015063824), (96, 845886520), (120, 676709216), (128, 634414890), (160, 507531912), (192, 422943260), (240, 338354608), (256, 317207445), (320, 253765956), (384, 211471630), (480, 169177304), (640, 126882978), (768, 105735815), (960, 84588652), (1280, 63441489), (1920, 42294326), (3840, 21147163)]