131434120

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{20929}}^1$

素因数の和:21097

約数の個数: 32

約数和(自身を含む): 297624600

約数和(自身を除く): 166190480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 20929, 41858, 83716, 104645, 167432, 209290, 418580, 837160, 3285853, 6571706, 13143412, 16429265, 26286824, 32858530, 65717060, 131434120]

約数ペア:

[(1, 131434120), (2, 65717060), (4, 32858530), (5, 26286824), (8, 16429265), (10, 13143412), (20, 6571706), (40, 3285853), (157, 837160), (314, 418580), (628, 209290), (785, 167432), (1256, 104645), (1570, 83716), (3140, 41858), (6280, 20929)]