64628975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{379}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 84816000

約数和(自身を除く): 20187025

約数列:

[1, 5, 19, 25, 95, 359, 379, 475, 1795, 1895, 6821, 7201, 8975, 9475, 34105, 36005, 136061, 170525, 180025, 680305, 2585159, 3401525, 12925795, 64628975]

約数ペア:

[(1, 64628975), (5, 12925795), (19, 3401525), (25, 2585159), (95, 680305), (359, 180025), (379, 170525), (475, 136061), (1795, 36005), (1895, 34105), (6821, 9475), (7201, 8975)]