399898805

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1\times {\mathrm{4259}}^1$

素因数の和:4564

約数の個数: 16

約数和(自身を含む): 487684800

約数和(自身を除く): 87785995

約数列:

[1, 5, 89, 211, 445, 1055, 4259, 18779, 21295, 93895, 379051, 898649, 1895255, 4493245, 79979761, 399898805]

約数ペア:

[(1, 399898805), (5, 79979761), (89, 4493245), (211, 1895255), (445, 898649), (1055, 379051), (4259, 93895), (18779, 21295)]