81717244

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{641}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 170412480

約数和(自身を除く): 88695236

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 157, 203, 314, 406, 628, 641, 812, 1099, 1282, 2198, 2564, 4396, 4487, 4553, 8974, 9106, 17948, 18212, 18589, 31871, 37178, 63742, 74356, 100637, 127484, 130123, 201274, 260246, 402548, 520492, 704459, 1408918, 2817836, 2918473, 5836946, 11673892, 20429311, 40858622, 81717244]

約数ペア:

[(1, 81717244), (2, 40858622), (4, 20429311), (7, 11673892), (14, 5836946), (28, 2918473), (29, 2817836), (58, 1408918), (116, 704459), (157, 520492), (203, 402548), (314, 260246), (406, 201274), (628, 130123), (641, 127484), (812, 100637), (1099, 74356), (1282, 63742), (2198, 37178), (2564, 31871), (4396, 18589), (4487, 18212), (4553, 17948), (8974, 9106)]