20159988

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3049}}^1$

素因数の和:3104

約数の個数: 48

約数和(自身を含む): 51240000

約数和(自身を除く): 31080012

約数列:

[1, 2, 3, 4, 6, 12, 19, 29, 38, 57, 58, 76, 87, 114, 116, 174, 228, 348, 551, 1102, 1653, 2204, 3049, 3306, 6098, 6612, 9147, 12196, 18294, 36588, 57931, 88421, 115862, 173793, 176842, 231724, 265263, 347586, 353684, 530526, 695172, 1061052, 1679999, 3359998, 5039997, 6719996, 10079994, 20159988]

約数ペア:

[(1, 20159988), (2, 10079994), (3, 6719996), (4, 5039997), (6, 3359998), (12, 1679999), (19, 1061052), (29, 695172), (38, 530526), (57, 353684), (58, 347586), (76, 265263), (87, 231724), (114, 176842), (116, 173793), (174, 115862), (228, 88421), (348, 57931), (551, 36588), (1102, 18294), (1653, 12196), (2204, 9147), (3049, 6612), (3306, 6098)]