81223208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15131}}^1$

素因数の和:15209

約数の個数: 32

約数和(自身を含む): 168873120

約数和(自身を除く): 87649912

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 5368, 15131, 30262, 60524, 121048, 166441, 332882, 665764, 922991, 1331528, 1845982, 3691964, 7383928, 10152901, 20305802, 40611604, 81223208]

約数ペア:

[(1, 81223208), (2, 40611604), (4, 20305802), (8, 10152901), (11, 7383928), (22, 3691964), (44, 1845982), (61, 1331528), (88, 922991), (122, 665764), (244, 332882), (488, 166441), (671, 121048), (1342, 60524), (2684, 30262), (5368, 15131)]