1280491708

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{20551}}^1$

素因数の和:21013

約数の個数: 24

約数和(自身を含む): 2307003104

約数和(自身を除く): 1026511396

約数列:

[1, 2, 4, 37, 74, 148, 421, 842, 1684, 15577, 20551, 31154, 41102, 62308, 82204, 760387, 1520774, 3041548, 8651971, 17303942, 34607884, 320122927, 640245854, 1280491708]

約数ペア:

[(1, 1280491708), (2, 640245854), (4, 320122927), (37, 34607884), (74, 17303942), (148, 8651971), (421, 3041548), (842, 1520774), (1684, 760387), (15577, 82204), (20551, 62308), (31154, 41102)]