81624320

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1483}}^1$

素因数の和:1547

約数の個数: 72

約数和(自身を含む): 200197536

約数和(自身を除く): 118573216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 640, 688, 860, 1280, 1376, 1483, 1720, 2752, 2966, 3440, 5504, 5932, 6880, 7415, 11008, 11864, 13760, 14830, 23728, 27520, 29660, 47456, 55040, 59320, 63769, 94912, 118640, 127538, 189824, 237280, 255076, 318845, 379648, 474560, 510152, 637690, 949120, 1020304, 1275380, 1898240, 2040608, 2550760, 4081216, 5101520, 8162432, 10203040, 16324864, 20406080, 40812160, 81624320]

約数ペア:

[(1, 81624320), (2, 40812160), (4, 20406080), (5, 16324864), (8, 10203040), (10, 8162432), (16, 5101520), (20, 4081216), (32, 2550760), (40, 2040608), (43, 1898240), (64, 1275380), (80, 1020304), (86, 949120), (128, 637690), (160, 510152), (172, 474560), (215, 379648), (256, 318845), (320, 255076), (344, 237280), (430, 189824), (640, 127538), (688, 118640), (860, 94912), (1280, 63769), (1376, 59320), (1483, 55040), (1720, 47456), (2752, 29660), (2966, 27520), (3440, 23728), (5504, 14830), (5932, 13760), (6880, 11864), (7415, 11008)]