1279260025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{761}}^1\times {\mathrm{3539}}^1$

素因数の和:4329

約数の個数: 24

約数和(自身を含む): 1672437600

約数和(自身を除く): 393177575

約数列:

[1, 5, 19, 25, 95, 475, 761, 3539, 3805, 14459, 17695, 19025, 67241, 72295, 88475, 336205, 361475, 1681025, 2693179, 13465895, 51170401, 67329475, 255852005, 1279260025]

約数ペア:

[(1, 1279260025), (5, 255852005), (19, 67329475), (25, 51170401), (95, 13465895), (475, 2693179), (761, 1681025), (3539, 361475), (3805, 336205), (14459, 88475), (17695, 72295), (19025, 67241)]