256280984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{19427}}^1$

素因数の和:19547

約数の個数: 32

約数和(自身を含む): 514064880

約数和(自身を除く): 257783896

約数列:

[1, 2, 4, 8, 17, 34, 68, 97, 136, 194, 388, 776, 1649, 3298, 6596, 13192, 19427, 38854, 77708, 155416, 330259, 660518, 1321036, 1884419, 2642072, 3768838, 7537676, 15075352, 32035123, 64070246, 128140492, 256280984]

約数ペア:

[(1, 256280984), (2, 128140492), (4, 64070246), (8, 32035123), (17, 15075352), (34, 7537676), (68, 3768838), (97, 2642072), (136, 1884419), (194, 1321036), (388, 660518), (776, 330259), (1649, 155416), (3298, 77708), (6596, 38854), (13192, 19427)]