853648435880

素因数分解:

$2^3\times 5^1\times {\mathrm{21341210897}}^1$

素因数の和:21341210908

約数の個数: 16

約数和(自身を含む): 1920708980820

約数和(自身を除く): 1067060544940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21341210897, 42682421794, 85364843588, 106706054485, 170729687176, 213412108970, 426824217940, 853648435880]

約数ペア:

[(1, 853648435880), (2, 426824217940), (4, 213412108970), (5, 170729687176), (8, 106706054485), (10, 85364843588), (20, 42682421794), (40, 21341210897)]