320742760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{1069}}^1$

素因数の和:1670

約数の個数: 64

約数和(自身を含む): 779259600

約数和(自身を除く): 458516840

約数列:

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

約数ペア:

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