256761232

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{176347}}^1$

素因数の和:176375

約数の個数: 40

約数和(自身を含む): 612280256

約数和(自身を除く): 355519024

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 176347, 352694, 705388, 1234429, 1410776, 2292511, 2468858, 2821552, 4585022, 4937716, 9170044, 9875432, 16047577, 18340088, 19750864, 32095154, 36680176, 64190308, 128380616, 256761232]

約数ペア:

[(1, 256761232), (2, 128380616), (4, 64190308), (7, 36680176), (8, 32095154), (13, 19750864), (14, 18340088), (16, 16047577), (26, 9875432), (28, 9170044), (52, 4937716), (56, 4585022), (91, 2821552), (104, 2468858), (112, 2292511), (182, 1410776), (208, 1234429), (364, 705388), (728, 352694), (1456, 176347)]