13020220

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1279}}^1$

素因数の和:1797

約数の個数: 24

約数和(自身を含む): 27417600

約数和(自身を除く): 14397380

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1279, 2036, 2545, 2558, 5090, 5116, 6395, 10180, 12790, 25580, 651011, 1302022, 2604044, 3255055, 6510110, 13020220]

約数ペア:

[(1, 13020220), (2, 6510110), (4, 3255055), (5, 2604044), (10, 1302022), (20, 651011), (509, 25580), (1018, 12790), (1279, 10180), (2036, 6395), (2545, 5116), (2558, 5090)]