21360787400

素因数分解:

$2^3\times 5^2\times {\mathrm{181}}^1\times {\mathrm{590077}}^1$

素因数の和:590274

約数の個数: 48

約数和(自身を含む): 49938301140

約数和(自身を除く): 28577513740

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 181, 200, 362, 724, 905, 1448, 1810, 3620, 4525, 7240, 9050, 18100, 36200, 590077, 1180154, 2360308, 2950385, 4720616, 5900770, 11801540, 14751925, 23603080, 29503850, 59007700, 106803937, 118015400, 213607874, 427215748, 534019685, 854431496, 1068039370, 2136078740, 2670098425, 4272157480, 5340196850, 10680393700, 21360787400]

約数ペア:

[(1, 21360787400), (2, 10680393700), (4, 5340196850), (5, 4272157480), (8, 2670098425), (10, 2136078740), (20, 1068039370), (25, 854431496), (40, 534019685), (50, 427215748), (100, 213607874), (181, 118015400), (200, 106803937), (362, 59007700), (724, 29503850), (905, 23603080), (1448, 14751925), (1810, 11801540), (3620, 5900770), (4525, 4720616), (7240, 2950385), (9050, 2360308), (18100, 1180154), (36200, 590077)]