81745744

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{49603}}^1$

素因数の和:49714

約数の個数: 20

約数和(自身を含む): 159923296

約数和(自身を除く): 78177552

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 49603, 99206, 198412, 396824, 793648, 5109109, 10218218, 20436436, 40872872, 81745744]

約数ペア:

[(1, 81745744), (2, 40872872), (4, 20436436), (8, 10218218), (16, 5109109), (103, 793648), (206, 396824), (412, 198412), (824, 99206), (1648, 49603)]