20802116860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148586549}}^1$

素因数の和:148586565

約数の個数: 24

約数和(自身を含む): 49925080800

約数和(自身を除く): 29122963940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148586549, 297173098, 594346196, 742932745, 1040105843, 1485865490, 2080211686, 2971730980, 4160423372, 5200529215, 10401058430, 20802116860]

約数ペア:

[(1, 20802116860), (2, 10401058430), (4, 5200529215), (5, 4160423372), (7, 2971730980), (10, 2080211686), (14, 1485865490), (20, 1040105843), (28, 742932745), (35, 594346196), (70, 297173098), (140, 148586549)]