71492260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1987}}^1$

素因数の和:2260

約数の個数: 48

約数和(自身を含む): 172335744

約数和(自身を除く): 100843484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1799, 1987, 2570, 3598, 3974, 5140, 7196, 7948, 8995, 9935, 13909, 17990, 19870, 27818, 35980, 39740, 55636, 69545, 139090, 278180, 510659, 1021318, 2042636, 2553295, 3574613, 5106590, 7149226, 10213180, 14298452, 17873065, 35746130, 71492260]

約数ペア:

[(1, 71492260), (2, 35746130), (4, 17873065), (5, 14298452), (7, 10213180), (10, 7149226), (14, 5106590), (20, 3574613), (28, 2553295), (35, 2042636), (70, 1021318), (140, 510659), (257, 278180), (514, 139090), (1028, 69545), (1285, 55636), (1799, 39740), (1987, 35980), (2570, 27818), (3598, 19870), (3974, 17990), (5140, 13909), (7196, 9935), (7948, 8995)]