681780428

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{308219}}^1$

素因数の和:308309

約数の個数: 24

約数和(自身を含む): 1380825600

約数和(自身を除く): 699045172

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 308219, 616438, 1232876, 2157533, 4315066, 8630132, 24349301, 48698602, 97397204, 170445107, 340890214, 681780428]

約数ペア:

[(1, 681780428), (2, 340890214), (4, 170445107), (7, 97397204), (14, 48698602), (28, 24349301), (79, 8630132), (158, 4315066), (316, 2157533), (553, 1232876), (1106, 616438), (2212, 308219)]