8990140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4201}}^1$

素因数の和:4317

約数の個数: 24

約数和(自身を含む): 19060272

約数和(自身を除く): 10070132

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 4201, 8402, 16804, 21005, 42010, 84020, 449507, 899014, 1798028, 2247535, 4495070, 8990140]

約数ペア:

[(1, 8990140), (2, 4495070), (4, 2247535), (5, 1798028), (10, 899014), (20, 449507), (107, 84020), (214, 42010), (428, 21005), (535, 16804), (1070, 8402), (2140, 4201)]