20994982012

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1319}}^1\times {\mathrm{1367}}^1$

素因数の和:2802

約数の個数: 48

約数和(自身を含む): 38224327680

約数和(自身を除く): 17229345668

約数列:

[1, 2, 4, 41, 71, 82, 142, 164, 284, 1319, 1367, 2638, 2734, 2911, 5276, 5468, 5822, 11644, 54079, 56047, 93649, 97057, 108158, 112094, 187298, 194114, 216316, 224188, 374596, 388228, 1803073, 3606146, 3839609, 3979337, 7212292, 7679218, 7958674, 15358436, 15917348, 73925993, 128018183, 147851986, 256036366, 295703972, 512072732, 5248745503, 10497491006, 20994982012]

約数ペア:

[(1, 20994982012), (2, 10497491006), (4, 5248745503), (41, 512072732), (71, 295703972), (82, 256036366), (142, 147851986), (164, 128018183), (284, 73925993), (1319, 15917348), (1367, 15358436), (2638, 7958674), (2734, 7679218), (2911, 7212292), (5276, 3979337), (5468, 3839609), (5822, 3606146), (11644, 1803073), (54079, 388228), (56047, 374596), (93649, 224188), (97057, 216316), (108158, 194114), (112094, 187298)]