18166120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64879}}^1$

素因数の和:64897

約数の個数: 32

約数和(自身を含む): 46713600

約数和(自身を除く): 28547480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64879, 129758, 259516, 324395, 454153, 519032, 648790, 908306, 1297580, 1816612, 2270765, 2595160, 3633224, 4541530, 9083060, 18166120]

約数ペア:

[(1, 18166120), (2, 9083060), (4, 4541530), (5, 3633224), (7, 2595160), (8, 2270765), (10, 1816612), (14, 1297580), (20, 908306), (28, 648790), (35, 519032), (40, 454153), (56, 324395), (70, 259516), (140, 129758), (280, 64879)]