278857243

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 349747200

約数和(自身を除く): 70889957

約数列:

[1, 7, 19, 29, 133, 197, 203, 367, 551, 1379, 2569, 3743, 3857, 5713, 6973, 10643, 26201, 39991, 48811, 72299, 74501, 108547, 202217, 506093, 759829, 1373681, 1415519, 2096671, 9615767, 14676697, 39836749, 278857243]

約数ペア:

[(1, 278857243), (7, 39836749), (19, 14676697), (29, 9615767), (133, 2096671), (197, 1415519), (203, 1373681), (367, 759829), (551, 506093), (1379, 202217), (2569, 108547), (3743, 74501), (3857, 72299), (5713, 48811), (6973, 39991), (10643, 26201)]