19805470145

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1\times {\mathrm{77731}}^1$

素因数の和:78256

約数の個数: 16

約数和(自身を含む): 24009860160

約数和(自身を除く): 4204390015

約数列:

[1, 5, 131, 389, 655, 1945, 50959, 77731, 254795, 388655, 10182761, 30237359, 50913805, 151186795, 3961094029, 19805470145]

約数ペア:

[(1, 19805470145), (5, 3961094029), (131, 151186795), (389, 50913805), (655, 30237359), (1945, 10182761), (50959, 388655), (77731, 254795)]