208450175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{1567}}^1$

素因数の和:1907

約数の個数: 24

約数和(自身を含む): 274732416

約数和(自身を除く): 66282241

約数列:

[1, 5, 17, 25, 85, 313, 425, 1565, 1567, 5321, 7825, 7835, 26605, 26639, 39175, 133025, 133195, 490471, 665975, 2452355, 8338007, 12261775, 41690035, 208450175]

約数ペア:

[(1, 208450175), (5, 41690035), (17, 12261775), (25, 8338007), (85, 2452355), (313, 665975), (425, 490471), (1565, 133195), (1567, 133025), (5321, 39175), (7825, 26639), (7835, 26605)]