686474672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{3300359}}^1$

素因数の和:3300380

約数の個数: 20

約数和(自身を含む): 1432356240

約数和(自身を除く): 745881568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 3300359, 6600718, 13201436, 26402872, 42904667, 52805744, 85809334, 171618668, 343237336, 686474672]

約数ペア:

[(1, 686474672), (2, 343237336), (4, 171618668), (8, 85809334), (13, 52805744), (16, 42904667), (26, 26402872), (52, 13201436), (104, 6600718), (208, 3300359)]