2580644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{659}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 4989600

約数和(自身を除く): 2408956

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 659, 979, 1318, 1958, 2636, 3916, 7249, 14498, 28996, 58651, 117302, 234604, 645161, 1290322, 2580644]

約数ペア:

[(1, 2580644), (2, 1290322), (4, 645161), (11, 234604), (22, 117302), (44, 58651), (89, 28996), (178, 14498), (356, 7249), (659, 3916), (979, 2636), (1318, 1958)]