66621256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{640589}}^1$

素因数の和:640608

約数の個数: 16

約数和(自身を含む): 134523900

約数和(自身を除く): 67902644

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 640589, 1281178, 2562356, 5124712, 8327657, 16655314, 33310628, 66621256]

約数ペア:

[(1, 66621256), (2, 33310628), (4, 16655314), (8, 8327657), (13, 5124712), (26, 2562356), (52, 1281178), (104, 640589)]