20517036

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 52678080

約数和(自身を除く): 32161044

約数列:

[1, 2, 3, 4, 6, 12, 19, 29, 38, 57, 58, 76, 87, 107, 114, 116, 174, 214, 228, 321, 348, 428, 551, 642, 841, 1102, 1284, 1653, 1682, 2033, 2204, 2523, 3103, 3306, 3364, 4066, 5046, 6099, 6206, 6612, 8132, 9309, 10092, 12198, 12412, 15979, 18618, 24396, 31958, 37236, 47937, 58957, 63916, 89987, 95874, 117914, 176871, 179974, 191748, 235828, 269961, 353742, 359948, 539922, 707484, 1079844, 1709753, 3419506, 5129259, 6839012, 10258518, 20517036]

約数ペア:

[(1, 20517036), (2, 10258518), (3, 6839012), (4, 5129259), (6, 3419506), (12, 1709753), (19, 1079844), (29, 707484), (38, 539922), (57, 359948), (58, 353742), (76, 269961), (87, 235828), (107, 191748), (114, 179974), (116, 176871), (174, 117914), (214, 95874), (228, 89987), (321, 63916), (348, 58957), (428, 47937), (551, 37236), (642, 31958), (841, 24396), (1102, 18618), (1284, 15979), (1653, 12412), (1682, 12198), (2033, 10092), (2204, 9309), (2523, 8132), (3103, 6612), (3306, 6206), (3364, 6099), (4066, 5046)]