208564440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{248291}}^1$

素因数の和:248312

約数の個数: 64

約数和(自身を含む): 715080960

約数和(自身を除く): 506516520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 248291, 496582, 744873, 993164, 1241455, 1489746, 1738037, 1986328, 2482910, 2979492, 3476074, 3724365, 4965820, 5214111, 5958984, 6952148, 7448730, 8690185, 9931640, 10428222, 13904296, 14897460, 17380370, 20856444, 26070555, 29794920, 34760740, 41712888, 52141110, 69521480, 104282220, 208564440]

約数ペア:

[(1, 208564440), (2, 104282220), (3, 69521480), (4, 52141110), (5, 41712888), (6, 34760740), (7, 29794920), (8, 26070555), (10, 20856444), (12, 17380370), (14, 14897460), (15, 13904296), (20, 10428222), (21, 9931640), (24, 8690185), (28, 7448730), (30, 6952148), (35, 5958984), (40, 5214111), (42, 4965820), (56, 3724365), (60, 3476074), (70, 2979492), (84, 2482910), (105, 1986328), (120, 1738037), (140, 1489746), (168, 1241455), (210, 993164), (280, 744873), (420, 496582), (840, 248291)]