80997436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19717}}^1$

素因数の和:19813

約数の個数: 24

約数和(自身を含む): 154589120

約数和(自身を除く): 73591684

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 19717, 39434, 78868, 256321, 512642, 1025284, 1557643, 3115286, 6230572, 20249359, 40498718, 80997436]

約数ペア:

[(1, 80997436), (2, 40498718), (4, 20249359), (13, 6230572), (26, 3115286), (52, 1557643), (79, 1025284), (158, 512642), (316, 256321), (1027, 78868), (2054, 39434), (4108, 19717)]