90320860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{645149}}^1$

素因数の和:645165

約数の個数: 24

約数和(自身を含む): 216770400

約数和(自身を除く): 126449540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 645149, 1290298, 2580596, 3225745, 4516043, 6451490, 9032086, 12902980, 18064172, 22580215, 45160430, 90320860]

約数ペア:

[(1, 90320860), (2, 45160430), (4, 22580215), (5, 18064172), (7, 12902980), (10, 9032086), (14, 6451490), (20, 4516043), (28, 3225745), (35, 2580596), (70, 1290298), (140, 645149)]