256837256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{9839}}^1$

素因数の和:10109

約数の個数: 32

約数和(自身を含む): 520732800

約数和(自身を除く): 263895544

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 251, 502, 1004, 2008, 3263, 6526, 9839, 13052, 19678, 26104, 39356, 78712, 127907, 255814, 511628, 1023256, 2469589, 4939178, 9878356, 19756712, 32104657, 64209314, 128418628, 256837256]

約数ペア:

[(1, 256837256), (2, 128418628), (4, 64209314), (8, 32104657), (13, 19756712), (26, 9878356), (52, 4939178), (104, 2469589), (251, 1023256), (502, 511628), (1004, 255814), (2008, 127907), (3263, 78712), (6526, 39356), (9839, 26104), (13052, 19678)]