82669220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{991}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 179655168

約数和(自身を除く): 96985948

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 388, 430, 485, 860, 970, 991, 1940, 1982, 3964, 4171, 4955, 8342, 9910, 16684, 19820, 20855, 41710, 42613, 83420, 85226, 96127, 170452, 192254, 213065, 384508, 426130, 480635, 852260, 961270, 1922540, 4133461, 8266922, 16533844, 20667305, 41334610, 82669220]

約数ペア:

[(1, 82669220), (2, 41334610), (4, 20667305), (5, 16533844), (10, 8266922), (20, 4133461), (43, 1922540), (86, 961270), (97, 852260), (172, 480635), (194, 426130), (215, 384508), (388, 213065), (430, 192254), (485, 170452), (860, 96127), (970, 85226), (991, 83420), (1940, 42613), (1982, 41710), (3964, 20855), (4171, 19820), (4955, 16684), (8342, 9910)]