20780172

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{27487}}^1$

素因数の和:27507

約数の個数: 48

約数和(自身を含む): 61573120

約数和(自身を除く): 40792948

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 27487, 54974, 82461, 109948, 164922, 192409, 247383, 329844, 384818, 494766, 577227, 742149, 769636, 989532, 1154454, 1484298, 1731681, 2308908, 2968596, 3463362, 5195043, 6926724, 10390086, 20780172]

約数ペア:

[(1, 20780172), (2, 10390086), (3, 6926724), (4, 5195043), (6, 3463362), (7, 2968596), (9, 2308908), (12, 1731681), (14, 1484298), (18, 1154454), (21, 989532), (27, 769636), (28, 742149), (36, 577227), (42, 494766), (54, 384818), (63, 329844), (84, 247383), (108, 192409), (126, 164922), (189, 109948), (252, 82461), (378, 54974), (756, 27487)]