12540475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1553}}^1$

素因数の和:1599

約数の個数: 24

約数和(自身を含む): 17342640

約数和(自身を除く): 4802165

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1553, 1615, 7765, 8075, 26401, 29507, 38825, 132005, 147535, 501619, 660025, 737675, 2508095, 12540475]

約数ペア:

[(1, 12540475), (5, 2508095), (17, 737675), (19, 660025), (25, 501619), (85, 147535), (95, 132005), (323, 38825), (425, 29507), (475, 26401), (1553, 8075), (1615, 7765)]