15698420620

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1220717}}^1$

素因数の和:1221369

約数の個数: 24

約数和(自身を含む): 33017980464

約数和(自身を除く): 17319559844

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 12860, 1220717, 2441434, 4882868, 6103585, 12207170, 24414340, 784921031, 1569842062, 3139684124, 3924605155, 7849210310, 15698420620]

約数ペア:

[(1, 15698420620), (2, 7849210310), (4, 3924605155), (5, 3139684124), (10, 1569842062), (20, 784921031), (643, 24414340), (1286, 12207170), (2572, 6103585), (3215, 4882868), (6430, 2441434), (12860, 1220717)]