521507120

素因数分解:

$2^4\times 5^1\times {\mathrm{6518839}}^1$

素因数の和:6518852

約数の個数: 20

約数和(自身を含む): 1212504240

約数和(自身を除く): 690997120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6518839, 13037678, 26075356, 32594195, 52150712, 65188390, 104301424, 130376780, 260753560, 521507120]

約数ペア:

[(1, 521507120), (2, 260753560), (4, 130376780), (5, 104301424), (8, 65188390), (10, 52150712), (16, 32594195), (20, 26075356), (40, 13037678), (80, 6518839)]