18205180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1193}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 44130240

約数和(自身を除く): 25925060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1193, 1526, 2180, 2386, 3052, 3815, 4772, 5965, 7630, 8351, 11930, 15260, 16702, 23860, 33404, 41755, 83510, 130037, 167020, 260074, 520148, 650185, 910259, 1300370, 1820518, 2600740, 3641036, 4551295, 9102590, 18205180]

約数ペア:

[(1, 18205180), (2, 9102590), (4, 4551295), (5, 3641036), (7, 2600740), (10, 1820518), (14, 1300370), (20, 910259), (28, 650185), (35, 520148), (70, 260074), (109, 167020), (140, 130037), (218, 83510), (436, 41755), (545, 33404), (763, 23860), (1090, 16702), (1193, 15260), (1526, 11930), (2180, 8351), (2386, 7630), (3052, 5965), (3815, 4772)]