20161247480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4165547}}^1$

素因数の和:4165580

約数の個数: 48

約数和(自身を含む): 49861609560

約数和(自身を除く): 29700362080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 4165547, 8331094, 16662188, 20827735, 33324376, 41655470, 45821017, 83310940, 91642034, 166621880, 183284068, 229105085, 366568136, 458210170, 504031187, 916420340, 1008062374, 1832840680, 2016124748, 2520155935, 4032249496, 5040311870, 10080623740, 20161247480]

約数ペア:

[(1, 20161247480), (2, 10080623740), (4, 5040311870), (5, 4032249496), (8, 2520155935), (10, 2016124748), (11, 1832840680), (20, 1008062374), (22, 916420340), (40, 504031187), (44, 458210170), (55, 366568136), (88, 229105085), (110, 183284068), (121, 166621880), (220, 91642034), (242, 83310940), (440, 45821017), (484, 41655470), (605, 33324376), (968, 20827735), (1210, 16662188), (2420, 8331094), (4840, 4165547)]