81872456

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{449}}^1\times {\mathrm{991}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 160704000

約数和(自身を除く): 78831544

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 449, 898, 991, 1796, 1982, 3592, 3964, 7928, 10327, 20654, 22793, 41308, 45586, 82616, 91172, 182344, 444959, 889918, 1779836, 3559672, 10234057, 20468114, 40936228, 81872456]

約数ペア:

[(1, 81872456), (2, 40936228), (4, 20468114), (8, 10234057), (23, 3559672), (46, 1779836), (92, 889918), (184, 444959), (449, 182344), (898, 91172), (991, 82616), (1796, 45586), (1982, 41308), (3592, 22793), (3964, 20654), (7928, 10327)]