128440656

素因数分解:

$2^4\times 3^2\times {\mathrm{43}}^1\times {\mathrm{20743}}^1$

素因数の和:20800

約数の個数: 60

約数和(自身を含む): 367832608

約数和(自身を除く): 239391952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 43, 48, 72, 86, 129, 144, 172, 258, 344, 387, 516, 688, 774, 1032, 1548, 2064, 3096, 6192, 20743, 41486, 62229, 82972, 124458, 165944, 186687, 248916, 331888, 373374, 497832, 746748, 891949, 995664, 1493496, 1783898, 2675847, 2986992, 3567796, 5351694, 7135592, 8027541, 10703388, 14271184, 16055082, 21406776, 32110164, 42813552, 64220328, 128440656]

約数ペア:

[(1, 128440656), (2, 64220328), (3, 42813552), (4, 32110164), (6, 21406776), (8, 16055082), (9, 14271184), (12, 10703388), (16, 8027541), (18, 7135592), (24, 5351694), (36, 3567796), (43, 2986992), (48, 2675847), (72, 1783898), (86, 1493496), (129, 995664), (144, 891949), (172, 746748), (258, 497832), (344, 373374), (387, 331888), (516, 248916), (688, 186687), (774, 165944), (1032, 124458), (1548, 82972), (2064, 62229), (3096, 41486), (6192, 20743)]