21182080

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1439}}^1$

素因数の和:1481

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 31694720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1439, 1472, 1840, 2878, 2944, 3680, 5756, 7195, 7360, 11512, 14390, 14720, 23024, 28780, 33097, 46048, 57560, 66194, 92096, 115120, 132388, 165485, 184192, 230240, 264776, 330970, 460480, 529552, 661940, 920960, 1059104, 1323880, 2118208, 2647760, 4236416, 5295520, 10591040, 21182080]

約数ペア:

[(1, 21182080), (2, 10591040), (4, 5295520), (5, 4236416), (8, 2647760), (10, 2118208), (16, 1323880), (20, 1059104), (23, 920960), (32, 661940), (40, 529552), (46, 460480), (64, 330970), (80, 264776), (92, 230240), (115, 184192), (128, 165485), (160, 132388), (184, 115120), (230, 92096), (320, 66194), (368, 57560), (460, 46048), (640, 33097), (736, 28780), (920, 23024), (1439, 14720), (1472, 14390), (1840, 11512), (2878, 7360), (2944, 7195), (3680, 5756)]