257419856

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{126683}}^1$

素因数の和:126818

約数の個数: 20

約数和(自身を含む): 502682112

約数和(自身を除く): 245262256

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 126683, 253366, 506732, 1013464, 2026928, 16088741, 32177482, 64354964, 128709928, 257419856]

約数ペア:

[(1, 257419856), (2, 128709928), (4, 64354964), (8, 32177482), (16, 16088741), (127, 2026928), (254, 1013464), (508, 506732), (1016, 253366), (2032, 126683)]