208836658

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 329414400

約数和(自身を除く): 120577742

約数列:

[1, 2, 37, 74, 79, 139, 158, 257, 278, 514, 2923, 5143, 5846, 9509, 10286, 10981, 19018, 20303, 21962, 35723, 40606, 71446, 406297, 751211, 812594, 1321751, 1502422, 2643502, 2822117, 5644234, 104418329, 208836658]

約数ペア:

[(1, 208836658), (2, 104418329), (37, 5644234), (74, 2822117), (79, 2643502), (139, 1502422), (158, 1321751), (257, 812594), (278, 751211), (514, 406297), (2923, 71446), (5143, 40606), (5846, 35723), (9509, 21962), (10286, 20303), (10981, 19018)]