72981380

素因数分解:

$2^2\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{2311}}^1$

素因数の和:3899

約数の個数: 24

約数和(自身を含む): 153424320

約数和(自身を除く): 80442940

約数列:

[1, 2, 4, 5, 10, 20, 1579, 2311, 3158, 4622, 6316, 7895, 9244, 11555, 15790, 23110, 31580, 46220, 3649069, 7298138, 14596276, 18245345, 36490690, 72981380]

約数ペア:

[(1, 72981380), (2, 36490690), (4, 18245345), (5, 14596276), (10, 7298138), (20, 3649069), (1579, 46220), (2311, 31580), (3158, 23110), (4622, 15790), (6316, 11555), (7895, 9244)]