81156328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 175374720

約数和(自身を除く): 94218392

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 101, 184, 202, 253, 397, 404, 506, 794, 808, 1012, 1111, 1588, 2024, 2222, 2323, 3176, 4367, 4444, 4646, 8734, 8888, 9131, 9292, 17468, 18262, 18584, 25553, 34936, 36524, 40097, 51106, 73048, 80194, 100441, 102212, 160388, 200882, 204424, 320776, 401764, 441067, 803528, 882134, 922231, 1764268, 1844462, 3528536, 3688924, 7377848, 10144541, 20289082, 40578164, 81156328]

約数ペア:

[(1, 81156328), (2, 40578164), (4, 20289082), (8, 10144541), (11, 7377848), (22, 3688924), (23, 3528536), (44, 1844462), (46, 1764268), (88, 922231), (92, 882134), (101, 803528), (184, 441067), (202, 401764), (253, 320776), (397, 204424), (404, 200882), (506, 160388), (794, 102212), (808, 100441), (1012, 80194), (1111, 73048), (1588, 51106), (2024, 40097), (2222, 36524), (2323, 34936), (3176, 25553), (4367, 18584), (4444, 18262), (4646, 17468), (8734, 9292), (8888, 9131)]