1249280

素因数分解:

$2^{12}\times 5^1\times {\mathrm{61}}^1$

素因数の和:90

約数の個数: 52

約数和(自身を含む): 3047052

約数和(自身を除く): 1797772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 512, 610, 640, 976, 1024, 1220, 1280, 1952, 2048, 2440, 2560, 3904, 4096, 4880, 5120, 7808, 9760, 10240, 15616, 19520, 20480, 31232, 39040, 62464, 78080, 124928, 156160, 249856, 312320, 624640, 1249280]

約数ペア:

[(1, 1249280), (2, 624640), (4, 312320), (5, 249856), (8, 156160), (10, 124928), (16, 78080), (20, 62464), (32, 39040), (40, 31232), (61, 20480), (64, 19520), (80, 15616), (122, 10240), (128, 9760), (160, 7808), (244, 5120), (256, 4880), (305, 4096), (320, 3904), (488, 2560), (512, 2440), (610, 2048), (640, 1952), (976, 1280), (1024, 1220)]