20018758

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 33436800

約数和(自身を除く): 13418042

約数列:

[1, 2, 17, 29, 34, 58, 79, 158, 257, 493, 514, 986, 1343, 2291, 2686, 4369, 4582, 7453, 8738, 14906, 20303, 38947, 40606, 77894, 126701, 253402, 345151, 588787, 690302, 1177574, 10009379, 20018758]

約数ペア:

[(1, 20018758), (2, 10009379), (17, 1177574), (29, 690302), (34, 588787), (58, 345151), (79, 253402), (158, 126701), (257, 77894), (493, 40606), (514, 38947), (986, 20303), (1343, 14906), (2291, 8738), (2686, 7453), (4369, 4582)]