28638080

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1543}}^1$

素因数の和:1591

約数の個数: 64

約数和(自身を含む): 70869600

約数和(自身を除く): 42231520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1160, 1543, 1856, 2320, 3086, 3712, 4640, 6172, 7715, 9280, 12344, 15430, 18560, 24688, 30860, 44747, 49376, 61720, 89494, 98752, 123440, 178988, 197504, 223735, 246880, 357976, 447470, 493760, 715952, 894940, 987520, 1431904, 1789880, 2863808, 3579760, 5727616, 7159520, 14319040, 28638080]

約数ペア:

[(1, 28638080), (2, 14319040), (4, 7159520), (5, 5727616), (8, 3579760), (10, 2863808), (16, 1789880), (20, 1431904), (29, 987520), (32, 894940), (40, 715952), (58, 493760), (64, 447470), (80, 357976), (116, 246880), (128, 223735), (145, 197504), (160, 178988), (232, 123440), (290, 98752), (320, 89494), (464, 61720), (580, 49376), (640, 44747), (928, 30860), (1160, 24688), (1543, 18560), (1856, 15430), (2320, 12344), (3086, 9280), (3712, 7715), (4640, 6172)]