80039428

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{21821}}^1$

素因数の和:21963

約数の個数: 24

約数和(自身を含む): 161308224

約数和(自身を除く): 81268796

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 21821, 43642, 87284, 152747, 305494, 610988, 2858551, 5717102, 11434204, 20009857, 40019714, 80039428]

約数ペア:

[(1, 80039428), (2, 40019714), (4, 20009857), (7, 11434204), (14, 5717102), (28, 2858551), (131, 610988), (262, 305494), (524, 152747), (917, 87284), (1834, 43642), (3668, 21821)]