159866480

素因数分解:

$2^4\times 5^1\times {\mathrm{1998331}}^1$

素因数の和:1998344

約数の個数: 20

約数和(自身を含む): 371689752

約数和(自身を除く): 211823272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1998331, 3996662, 7993324, 9991655, 15986648, 19983310, 31973296, 39966620, 79933240, 159866480]

約数ペア:

[(1, 159866480), (2, 79933240), (4, 39966620), (5, 31973296), (8, 19983310), (10, 15986648), (16, 9991655), (20, 7993324), (40, 3996662), (80, 1998331)]