18490475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 24529680

約数和(自身を除く): 6039205

約数列:

[1, 5, 17, 25, 85, 139, 313, 425, 695, 1565, 2363, 3475, 5321, 7825, 11815, 26605, 43507, 59075, 133025, 217535, 739619, 1087675, 3698095, 18490475]

約数ペア:

[(1, 18490475), (5, 3698095), (17, 1087675), (25, 739619), (85, 217535), (139, 133025), (313, 59075), (425, 43507), (695, 26605), (1565, 11815), (2363, 7825), (3475, 5321)]