8087720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 19440000

約数和(自身を除く): 11352280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 59, 92, 115, 118, 149, 184, 230, 236, 295, 298, 460, 472, 590, 596, 745, 920, 1180, 1192, 1357, 1490, 2360, 2714, 2980, 3427, 5428, 5960, 6785, 6854, 8791, 10856, 13570, 13708, 17135, 17582, 27140, 27416, 34270, 35164, 43955, 54280, 68540, 70328, 87910, 137080, 175820, 202193, 351640, 404386, 808772, 1010965, 1617544, 2021930, 4043860, 8087720]

約数ペア:

[(1, 8087720), (2, 4043860), (4, 2021930), (5, 1617544), (8, 1010965), (10, 808772), (20, 404386), (23, 351640), (40, 202193), (46, 175820), (59, 137080), (92, 87910), (115, 70328), (118, 68540), (149, 54280), (184, 43955), (230, 35164), (236, 34270), (295, 27416), (298, 27140), (460, 17582), (472, 17135), (590, 13708), (596, 13570), (745, 10856), (920, 8791), (1180, 6854), (1192, 6785), (1357, 5960), (1490, 5428), (2360, 3427), (2714, 2980)]