20194994540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1487113}}^1$

素因数の和:1487226

約数の個数: 48

約数和(自身を含む): 48967689792

約数和(自身を除く): 28772695252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2716, 3395, 6790, 13580, 1487113, 2974226, 5948452, 7435565, 10409791, 14871130, 20819582, 29742260, 41639164, 52048955, 104097910, 144249961, 208195820, 288499922, 576999844, 721249805, 1009749727, 1442499610, 2019499454, 2884999220, 4038998908, 5048748635, 10097497270, 20194994540]

約数ペア:

[(1, 20194994540), (2, 10097497270), (4, 5048748635), (5, 4038998908), (7, 2884999220), (10, 2019499454), (14, 1442499610), (20, 1009749727), (28, 721249805), (35, 576999844), (70, 288499922), (97, 208195820), (140, 144249961), (194, 104097910), (388, 52048955), (485, 41639164), (679, 29742260), (970, 20819582), (1358, 14871130), (1940, 10409791), (2716, 7435565), (3395, 5948452), (6790, 2974226), (13580, 1487113)]