199944520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{3061}}^1$

素因数の和:3166

約数の個数: 64

約数和(自身を含む): 476202240

約数和(自身を除く): 276257720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 460, 568, 710, 920, 1420, 1633, 2840, 3061, 3266, 6122, 6532, 8165, 12244, 13064, 15305, 16330, 24488, 30610, 32660, 61220, 65320, 70403, 122440, 140806, 217331, 281612, 352015, 434662, 563224, 704030, 869324, 1086655, 1408060, 1738648, 2173310, 2816120, 4346620, 4998613, 8693240, 9997226, 19994452, 24993065, 39988904, 49986130, 99972260, 199944520]

約数ペア:

[(1, 199944520), (2, 99972260), (4, 49986130), (5, 39988904), (8, 24993065), (10, 19994452), (20, 9997226), (23, 8693240), (40, 4998613), (46, 4346620), (71, 2816120), (92, 2173310), (115, 1738648), (142, 1408060), (184, 1086655), (230, 869324), (284, 704030), (355, 563224), (460, 434662), (568, 352015), (710, 281612), (920, 217331), (1420, 140806), (1633, 122440), (2840, 70403), (3061, 65320), (3266, 61220), (6122, 32660), (6532, 30610), (8165, 24488), (12244, 16330), (13064, 15305)]