289801904

素因数分解:

$2^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{16481}}^1$

素因数の和:16653

約数の個数: 40

約数和(自身を含む): 645830688

約数和(自身を除く): 356028784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 157, 314, 628, 1099, 1256, 2198, 2512, 4396, 8792, 16481, 17584, 32962, 65924, 115367, 131848, 230734, 263696, 461468, 922936, 1845872, 2587517, 5175034, 10350068, 18112619, 20700136, 36225238, 41400272, 72450476, 144900952, 289801904]

約数ペア:

[(1, 289801904), (2, 144900952), (4, 72450476), (7, 41400272), (8, 36225238), (14, 20700136), (16, 18112619), (28, 10350068), (56, 5175034), (112, 2587517), (157, 1845872), (314, 922936), (628, 461468), (1099, 263696), (1256, 230734), (2198, 131848), (2512, 115367), (4396, 65924), (8792, 32962), (16481, 17584)]