218963240

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{43103}}^1$

素因数の和:43241

約数の個数: 32

約数和(自身を含む): 496558080

約数和(自身を除く): 277594840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 43103, 86206, 172412, 215515, 344824, 431030, 862060, 1724120, 5474081, 10948162, 21896324, 27370405, 43792648, 54740810, 109481620, 218963240]

約数ペア:

[(1, 218963240), (2, 109481620), (4, 54740810), (5, 43792648), (8, 27370405), (10, 21896324), (20, 10948162), (40, 5474081), (127, 1724120), (254, 862060), (508, 431030), (635, 344824), (1016, 215515), (1270, 172412), (2540, 86206), (5080, 43103)]