19472080

素因数分解:

$2^4\times 5^1\times {\mathrm{243401}}^1$

素因数の和:243414

約数の個数: 20

約数和(自身を含む): 45272772

約数和(自身を除く): 25800692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 243401, 486802, 973604, 1217005, 1947208, 2434010, 3894416, 4868020, 9736040, 19472080]

約数ペア:

[(1, 19472080), (2, 9736040), (4, 4868020), (5, 3894416), (8, 2434010), (10, 1947208), (16, 1217005), (20, 973604), (40, 486802), (80, 243401)]