64704025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{761}}^1$

素因数の和:969

約数の個数: 24

約数和(自身を含む): 85039200

約数和(自身を除く): 20335175

約数列:

[1, 5, 19, 25, 95, 179, 475, 761, 895, 3401, 3805, 4475, 14459, 17005, 19025, 72295, 85025, 136219, 361475, 681095, 2588161, 3405475, 12940805, 64704025]

約数ペア:

[(1, 64704025), (5, 12940805), (19, 3405475), (25, 2588161), (95, 681095), (179, 361475), (475, 136219), (761, 85025), (895, 72295), (3401, 19025), (3805, 17005), (4475, 14459)]