25310140

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1277}}^1$

素因数の和:2277

約数の個数: 24

約数和(自身を含む): 53246592

約数和(自身を除く): 27936452

約数列:

[1, 2, 4, 5, 10, 20, 991, 1277, 1982, 2554, 3964, 4955, 5108, 6385, 9910, 12770, 19820, 25540, 1265507, 2531014, 5062028, 6327535, 12655070, 25310140]

約数ペア:

[(1, 25310140), (2, 12655070), (4, 6327535), (5, 5062028), (10, 2531014), (20, 1265507), (991, 25540), (1277, 19820), (1982, 12770), (2554, 9910), (3964, 6385), (4955, 5108)]