81073804

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 176166144

約数和(自身を除く): 95092340

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 62, 92, 124, 131, 161, 217, 262, 322, 434, 524, 644, 713, 868, 917, 961, 1426, 1834, 1922, 2852, 3013, 3668, 3844, 4061, 4991, 6026, 6727, 8122, 9982, 12052, 13454, 16244, 19964, 21091, 22103, 26908, 28427, 42182, 44206, 56854, 84364, 88412, 93403, 113708, 125891, 154721, 186806, 251782, 309442, 373612, 503564, 618884, 653821, 881237, 1307642, 1762474, 2615284, 2895493, 3524948, 5790986, 11581972, 20268451, 40536902, 81073804]

約数ペア:

[(1, 81073804), (2, 40536902), (4, 20268451), (7, 11581972), (14, 5790986), (23, 3524948), (28, 2895493), (31, 2615284), (46, 1762474), (62, 1307642), (92, 881237), (124, 653821), (131, 618884), (161, 503564), (217, 373612), (262, 309442), (322, 251782), (434, 186806), (524, 154721), (644, 125891), (713, 113708), (868, 93403), (917, 88412), (961, 84364), (1426, 56854), (1834, 44206), (1922, 42182), (2852, 28427), (3013, 26908), (3668, 22103), (3844, 21091), (4061, 19964), (4991, 16244), (6026, 13454), (6727, 12052), (8122, 9982)]