15616240

素因数分解:

$2^4\times 5^1\times {\mathrm{195203}}^1$

素因数の和:195216

約数の個数: 20

約数和(自身を含む): 36307944

約数和(自身を除く): 20691704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195203, 390406, 780812, 976015, 1561624, 1952030, 3123248, 3904060, 7808120, 15616240]

約数ペア:

[(1, 15616240), (2, 7808120), (4, 3904060), (5, 3123248), (8, 1952030), (10, 1561624), (16, 976015), (20, 780812), (40, 390406), (80, 195203)]