208397780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{3413}}^1$

素因数の和:3536

約数の個数: 48

約数和(自身を含む): 454253184

約数和(自身を除く): 245855404

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 284, 355, 430, 710, 860, 1420, 3053, 3413, 6106, 6826, 12212, 13652, 15265, 17065, 30530, 34130, 61060, 68260, 146759, 242323, 293518, 484646, 587036, 733795, 969292, 1211615, 1467590, 2423230, 2935180, 4846460, 10419889, 20839778, 41679556, 52099445, 104198890, 208397780]

約数ペア:

[(1, 208397780), (2, 104198890), (4, 52099445), (5, 41679556), (10, 20839778), (20, 10419889), (43, 4846460), (71, 2935180), (86, 2423230), (142, 1467590), (172, 1211615), (215, 969292), (284, 733795), (355, 587036), (430, 484646), (710, 293518), (860, 242323), (1420, 146759), (3053, 68260), (3413, 61060), (6106, 34130), (6826, 30530), (12212, 17065), (13652, 15265)]