19660025

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1459}}^1$

素因数の和:1494

約数の個数: 36

約数和(自身を含む): 30957840

約数和(自身を除く): 11297815

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 175, 245, 275, 385, 539, 1225, 1459, 1925, 2695, 7295, 10213, 13475, 16049, 36475, 51065, 71491, 80245, 112343, 255325, 357455, 401225, 561715, 786401, 1787275, 2808575, 3932005, 19660025]

約数ペア:

[(1, 19660025), (5, 3932005), (7, 2808575), (11, 1787275), (25, 786401), (35, 561715), (49, 401225), (55, 357455), (77, 255325), (175, 112343), (245, 80245), (275, 71491), (385, 51065), (539, 36475), (1225, 16049), (1459, 13475), (1925, 10213), (2695, 7295)]