81121328

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{18043}}^1$

素因数の和:18332

約数の個数: 20

約数和(自身を含む): 157740648

約数和(自身を除く): 76619320

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 18043, 36086, 72172, 144344, 288688, 5070083, 10140166, 20280332, 40560664, 81121328]

約数ペア:

[(1, 81121328), (2, 40560664), (4, 20280332), (8, 10140166), (16, 5070083), (281, 288688), (562, 144344), (1124, 72172), (2248, 36086), (4496, 18043)]