81886720

素因数分解:

$2^9\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1103}}^1$

素因数の和:1155

約数の個数: 80

約数和(自身を含む): 203290560

約数和(自身を除く): 121403840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 512, 580, 640, 928, 1103, 1160, 1280, 1856, 2206, 2320, 2560, 3712, 4412, 4640, 5515, 7424, 8824, 9280, 11030, 14848, 17648, 18560, 22060, 31987, 35296, 37120, 44120, 63974, 70592, 74240, 88240, 127948, 141184, 159935, 176480, 255896, 282368, 319870, 352960, 511792, 564736, 639740, 705920, 1023584, 1279480, 1411840, 2047168, 2558960, 2823680, 4094336, 5117920, 8188672, 10235840, 16377344, 20471680, 40943360, 81886720]

約数ペア:

[(1, 81886720), (2, 40943360), (4, 20471680), (5, 16377344), (8, 10235840), (10, 8188672), (16, 5117920), (20, 4094336), (29, 2823680), (32, 2558960), (40, 2047168), (58, 1411840), (64, 1279480), (80, 1023584), (116, 705920), (128, 639740), (145, 564736), (160, 511792), (232, 352960), (256, 319870), (290, 282368), (320, 255896), (464, 176480), (512, 159935), (580, 141184), (640, 127948), (928, 88240), (1103, 74240), (1160, 70592), (1280, 63974), (1856, 44120), (2206, 37120), (2320, 35296), (2560, 31987), (3712, 22060), (4412, 18560), (4640, 17648), (5515, 14848), (7424, 11030), (8824, 9280)]