162780025

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{617}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 206676504

約数和(自身を除く): 43896479

約数列:

[1, 5, 25, 61, 173, 305, 617, 865, 1525, 3085, 4325, 10553, 15425, 37637, 52765, 106741, 188185, 263825, 533705, 940925, 2668525, 6511201, 32556005, 162780025]

約数ペア:

[(1, 162780025), (5, 32556005), (25, 6511201), (61, 2668525), (173, 940925), (305, 533705), (617, 263825), (865, 188185), (1525, 106741), (3085, 52765), (4325, 37637), (10553, 15425)]