181570340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2017}}^1$

素因数の和:2676

約数の個数: 48

約数和(自身を含む): 436662912

約数和(自身を除く): 255092572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 2017, 2572, 3215, 4034, 4501, 6430, 8068, 9002, 10085, 12860, 14119, 18004, 20170, 22505, 28238, 40340, 45010, 56476, 70595, 90020, 141190, 282380, 1296931, 2593862, 5187724, 6484655, 9078517, 12969310, 18157034, 25938620, 36314068, 45392585, 90785170, 181570340]

約数ペア:

[(1, 181570340), (2, 90785170), (4, 45392585), (5, 36314068), (7, 25938620), (10, 18157034), (14, 12969310), (20, 9078517), (28, 6484655), (35, 5187724), (70, 2593862), (140, 1296931), (643, 282380), (1286, 141190), (2017, 90020), (2572, 70595), (3215, 56476), (4034, 45010), (4501, 40340), (6430, 28238), (8068, 22505), (9002, 20170), (10085, 18004), (12860, 14119)]