20180864

素因数分解:

$2^7\times {\mathrm{11}}^2\times {\mathrm{1303}}^1$

素因数の和:1339

約数の個数: 48

約数和(自身を含む): 44225160

約数和(自身を除く): 24044296

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 121, 128, 176, 242, 352, 484, 704, 968, 1303, 1408, 1936, 2606, 3872, 5212, 7744, 10424, 14333, 15488, 20848, 28666, 41696, 57332, 83392, 114664, 157663, 166784, 229328, 315326, 458656, 630652, 917312, 1261304, 1834624, 2522608, 5045216, 10090432, 20180864]

約数ペア:

[(1, 20180864), (2, 10090432), (4, 5045216), (8, 2522608), (11, 1834624), (16, 1261304), (22, 917312), (32, 630652), (44, 458656), (64, 315326), (88, 229328), (121, 166784), (128, 157663), (176, 114664), (242, 83392), (352, 57332), (484, 41696), (704, 28666), (968, 20848), (1303, 15488), (1408, 14333), (1936, 10424), (2606, 7744), (3872, 5212)]