20725407072

素因数分解:

$2^5\times 3^2\times {\mathrm{139}}^1\times {\mathrm{517721}}^1$

素因数の和:517876

約数の個数: 72

約数和(自身を含む): 59362004520

約数和(自身を除く): 38636597448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 139, 144, 278, 288, 417, 556, 834, 1112, 1251, 1668, 2224, 2502, 3336, 4448, 5004, 6672, 10008, 13344, 20016, 40032, 517721, 1035442, 1553163, 2070884, 3106326, 4141768, 4659489, 6212652, 8283536, 9318978, 12425304, 16567072, 18637956, 24850608, 37275912, 49701216, 71963219, 74551824, 143926438, 149103648, 215889657, 287852876, 431779314, 575705752, 647668971, 863558628, 1151411504, 1295337942, 1727117256, 2302823008, 2590675884, 3454234512, 5181351768, 6908469024, 10362703536, 20725407072]

約数ペア:

[(1, 20725407072), (2, 10362703536), (3, 6908469024), (4, 5181351768), (6, 3454234512), (8, 2590675884), (9, 2302823008), (12, 1727117256), (16, 1295337942), (18, 1151411504), (24, 863558628), (32, 647668971), (36, 575705752), (48, 431779314), (72, 287852876), (96, 215889657), (139, 149103648), (144, 143926438), (278, 74551824), (288, 71963219), (417, 49701216), (556, 37275912), (834, 24850608), (1112, 18637956), (1251, 16567072), (1668, 12425304), (2224, 9318978), (2502, 8283536), (3336, 6212652), (4448, 4659489), (5004, 4141768), (6672, 3106326), (10008, 2070884), (13344, 1553163), (20016, 1035442), (40032, 517721)]