13680020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15907}}^1$

素因数の和:15959

約数の個数: 24

約数和(自身を含む): 29397984

約数和(自身を除く): 15717964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 15907, 31814, 63628, 79535, 159070, 318140, 684001, 1368002, 2736004, 3420005, 6840010, 13680020]

約数ペア:

[(1, 13680020), (2, 6840010), (4, 3420005), (5, 2736004), (10, 1368002), (20, 684001), (43, 318140), (86, 159070), (172, 79535), (215, 63628), (430, 31814), (860, 15907)]