181160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{647}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 466560

約数和(自身を除く): 285400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 647, 1294, 2588, 3235, 4529, 5176, 6470, 9058, 12940, 18116, 22645, 25880, 36232, 45290, 90580, 181160]

約数ペア:

[(1, 181160), (2, 90580), (4, 45290), (5, 36232), (7, 25880), (8, 22645), (10, 18116), (14, 12940), (20, 9058), (28, 6470), (35, 5176), (40, 4529), (56, 3235), (70, 2588), (140, 1294), (280, 647)]