1813309820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{275579}}^1$

素因数の和:275642

約数の個数: 48

約数和(自身を含む): 4444554240

約数和(自身を除く): 2631244420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 275579, 551158, 1102316, 1377895, 1929053, 2755790, 3858106, 5511580, 7716212, 9645265, 12952213, 19290530, 25904426, 38581060, 51808852, 64761065, 90665491, 129522130, 181330982, 259044260, 362661964, 453327455, 906654910, 1813309820]

約数ペア:

[(1, 1813309820), (2, 906654910), (4, 453327455), (5, 362661964), (7, 259044260), (10, 181330982), (14, 129522130), (20, 90665491), (28, 64761065), (35, 51808852), (47, 38581060), (70, 25904426), (94, 19290530), (140, 12952213), (188, 9645265), (235, 7716212), (329, 5511580), (470, 3858106), (658, 2755790), (940, 1929053), (1316, 1377895), (1645, 1102316), (3290, 551158), (6580, 275579)]