81225972

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{373}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 215639424

約数和(自身を除く): 134413452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 263, 276, 373, 414, 526, 746, 789, 828, 1052, 1119, 1492, 1578, 2238, 2367, 3156, 3357, 4476, 4734, 6049, 6714, 8579, 9468, 12098, 13428, 17158, 18147, 24196, 25737, 34316, 36294, 51474, 54441, 72588, 77211, 98099, 102948, 108882, 154422, 196198, 217764, 294297, 308844, 392396, 588594, 882891, 1177188, 1765782, 2256277, 3531564, 4512554, 6768831, 9025108, 13537662, 20306493, 27075324, 40612986, 81225972]

約数ペア:

[(1, 81225972), (2, 40612986), (3, 27075324), (4, 20306493), (6, 13537662), (9, 9025108), (12, 6768831), (18, 4512554), (23, 3531564), (36, 2256277), (46, 1765782), (69, 1177188), (92, 882891), (138, 588594), (207, 392396), (263, 308844), (276, 294297), (373, 217764), (414, 196198), (526, 154422), (746, 108882), (789, 102948), (828, 98099), (1052, 77211), (1119, 72588), (1492, 54441), (1578, 51474), (2238, 36294), (2367, 34316), (3156, 25737), (3357, 24196), (4476, 18147), (4734, 17158), (6049, 13428), (6714, 12098), (8579, 9468)]