159712400

素因数分解:

$2^4\times 5^2\times {\mathrm{399281}}^1$

素因数の和:399299

約数の個数: 30

約数和(自身を含む): 383710002

約数和(自身を除く): 223997602

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 399281, 798562, 1597124, 1996405, 3194248, 3992810, 6388496, 7985620, 9982025, 15971240, 19964050, 31942480, 39928100, 79856200, 159712400]

約数ペア:

[(1, 159712400), (2, 79856200), (4, 39928100), (5, 31942480), (8, 19964050), (10, 15971240), (16, 9982025), (20, 7985620), (25, 6388496), (40, 3992810), (50, 3194248), (80, 1996405), (100, 1597124), (200, 798562), (400, 399281)]