641485520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{1069}}^1$

素因数の和:1672

約数の個数: 80

約数和(自身を含む): 1610469840

約数和(自身を除く): 968984320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 577, 1040, 1069, 1154, 2138, 2308, 2885, 4276, 4616, 5345, 5770, 7501, 8552, 9232, 10690, 11540, 13897, 15002, 17104, 21380, 23080, 27794, 30004, 37505, 42760, 46160, 55588, 60008, 69485, 75010, 85520, 111176, 120016, 138970, 150020, 222352, 277940, 300040, 555880, 600080, 616813, 1111760, 1233626, 2467252, 3084065, 4934504, 6168130, 8018569, 9869008, 12336260, 16037138, 24672520, 32074276, 40092845, 49345040, 64148552, 80185690, 128297104, 160371380, 320742760, 641485520]

約数ペア:

[(1, 641485520), (2, 320742760), (4, 160371380), (5, 128297104), (8, 80185690), (10, 64148552), (13, 49345040), (16, 40092845), (20, 32074276), (26, 24672520), (40, 16037138), (52, 12336260), (65, 9869008), (80, 8018569), (104, 6168130), (130, 4934504), (208, 3084065), (260, 2467252), (520, 1233626), (577, 1111760), (1040, 616813), (1069, 600080), (1154, 555880), (2138, 300040), (2308, 277940), (2885, 222352), (4276, 150020), (4616, 138970), (5345, 120016), (5770, 111176), (7501, 85520), (8552, 75010), (9232, 69485), (10690, 60008), (11540, 55588), (13897, 46160), (15002, 42760), (17104, 37505), (21380, 30004), (23080, 27794)]