5142580

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1059

約数の個数: 24

約数和(自身を含む): 10843560

約数和(自身を除く): 5700980

約数列:

[1, 2, 4, 5, 10, 20, 389, 661, 778, 1322, 1556, 1945, 2644, 3305, 3890, 6610, 7780, 13220, 257129, 514258, 1028516, 1285645, 2571290, 5142580]

約数ペア:

[(1, 5142580), (2, 2571290), (4, 1285645), (5, 1028516), (10, 514258), (20, 257129), (389, 13220), (661, 7780), (778, 6610), (1322, 3890), (1556, 3305), (1945, 2644)]