256688

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:332

約数の個数: 20

約数和(自身を含む): 507408

約数和(自身を除く): 250720

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 263, 488, 526, 976, 1052, 2104, 4208, 16043, 32086, 64172, 128344, 256688]

約数ペア:

[(1, 256688), (2, 128344), (4, 64172), (8, 32086), (16, 16043), (61, 4208), (122, 2104), (244, 1052), (263, 976), (488, 526)]