81987512

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{115151}}^1$

素因数の和:115246

約数の個数: 16

約数和(自身を含む): 155455200

約数和(自身を除く): 73467688

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 115151, 230302, 460604, 921208, 10248439, 20496878, 40993756, 81987512]

約数ペア:

[(1, 81987512), (2, 40993756), (4, 20496878), (8, 10248439), (89, 921208), (178, 460604), (356, 230302), (712, 115151)]