20181491624

素因数分解:

$2^3\times 7^3\times {\mathrm{2609}}^1\times {\mathrm{2819}}^1$

素因数の和:5455

約数の個数: 64

約数和(自身を含む): 44161200000

約数和(自身を除く): 23979708376

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2609, 2744, 2819, 5218, 5638, 10436, 11276, 18263, 19733, 20872, 22552, 36526, 39466, 73052, 78932, 127841, 138131, 146104, 157864, 255682, 276262, 511364, 552524, 894887, 966917, 1022728, 1105048, 1789774, 1933834, 3579548, 3867668, 7159096, 7354771, 7735336, 14709542, 29419084, 51483397, 58838168, 102966794, 205933588, 360383779, 411867176, 720767558, 1441535116, 2522686453, 2883070232, 5045372906, 10090745812, 20181491624]

約数ペア:

[(1, 20181491624), (2, 10090745812), (4, 5045372906), (7, 2883070232), (8, 2522686453), (14, 1441535116), (28, 720767558), (49, 411867176), (56, 360383779), (98, 205933588), (196, 102966794), (343, 58838168), (392, 51483397), (686, 29419084), (1372, 14709542), (2609, 7735336), (2744, 7354771), (2819, 7159096), (5218, 3867668), (5638, 3579548), (10436, 1933834), (11276, 1789774), (18263, 1105048), (19733, 1022728), (20872, 966917), (22552, 894887), (36526, 552524), (39466, 511364), (73052, 276262), (78932, 255682), (127841, 157864), (138131, 146104)]