71961988

素因数分解:

$2^2\times 7^2\times {\mathrm{571}}^1\times {\mathrm{643}}^1$

素因数の和:1232

約数の個数: 36

約数和(自身を含む): 146978832

約数和(自身を除く): 75016844

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 571, 643, 1142, 1286, 2284, 2572, 3997, 4501, 7994, 9002, 15988, 18004, 27979, 31507, 55958, 63014, 111916, 126028, 367153, 734306, 1468612, 2570071, 5140142, 10280284, 17990497, 35980994, 71961988]

約数ペア:

[(1, 71961988), (2, 35980994), (4, 17990497), (7, 10280284), (14, 5140142), (28, 2570071), (49, 1468612), (98, 734306), (196, 367153), (571, 126028), (643, 111916), (1142, 63014), (1286, 55958), (2284, 31507), (2572, 27979), (3997, 18004), (4501, 15988), (7994, 9002)]